16. List of publications: 1. I. Bicu, V. I. Popa and E. Poppel

Investigations for the obtaining of papers with addition of polyamine -polyamide - epichlorhydrine resin. II Resin influence upon the electrokinetic potential and upon

the retention of filing materials (from the paper presented at the 64th ZELLCHEMING Conference Baden - Baden, 1969)

Celuloza si Hartie, 18 (10), 498-503 (1969) 2. I. Bicu, V. I. Popa, E. Poppel and C.I. Simionescu

Verhalten bei den Bedrunken der gefullten, in neutralen Medium geleimten und mit Polyamin - Polyamid - Epichorhidrine - Harz nassfestgemache Papiere. Paper presented at the 14th EUCEPA Conference, Budapesta, 1971)

Zellstoff und Papier, 21 (1), 8-13 (1972)

3. G. Rozmarin, M. Popa-Stoicescu, and V. I. Popa New technological and theoretical considerations upon the fabrication of fodder yeasts. II. Chemical-structural and electrophoretic characteristics of fodder yeasts. Statistical analysis of industrial multiplication Celuloza si Hartie, 22 (6), 242-253 (1973) 4. C.I. Simionescu, V. Rusan and V. I. Popa Fields of utilization of the alginic acid and its derivatives Celuloza si Hartie, 22 (7), 273-287 (1973) 5. G. Rozmarin, V. I. Popa, G. Stafie and I. Toth New technological and theoretical considerations upon the fabrication of fodder yeasts. III. Kinetics and mathematical modelling in the processes of continuos multiplication Celuloza si Hartie, 22 (7), 296-303 (1973) 6. V. I. Popa and C.I. Simionescu Investigations in the chemistry of seaweeds. I. Separation and characterization of alginic acid from brown seaweed Cystoseira barbata Cellulose Chemistry and Technology, 8(2), 153-165 (1974) 7. R. Butnaru and V. I. Popa Contributions to the chemical-analytical study of the culture media compositions applied in the fabrication of fodder yeasts Celuloza si Hartie, 24 (1), 10-13 (1975) 8. C.I. Simionescu and V. I. Popa Investigations in the field of seaweeds. II. Previous studies on polysaccharides from seaweed Phyllophora nervosa Cellulose Chemistry and Technology, 9 (2), 119-127 (1975) 9. C.I. Simionescu , V. I. Popa, V. Rusan and A. Liga Research in the field of seaweeds chemistry. III. Contributions to the molecular structure of alginic acid Cellulose Chemistry and Technology, 9 (3), 213-225 (1975)

10. C.I. Simionescu , V. I. Popa, A. Liga and V. Rusan Research in the field of seaweeds chemistry. IV. Molecular structure of the alginic acid Cellulose Chemistry and Technology, 9 (5), 547-554 (1975)

11. V. I. Popa Research in the field of seaweeds chemistry Research project for Ph.D. Polytechnic Institute of Iassy, 1975 12. C.I. Simionescu , V. I. Popa, and V. Rusan Research-work on the chemistry of marine algae. V. Correlation between polymers conformations and their capacity of iodine complexing. Alginic acid-iodine complexes Cellulose Chemistry and Technology, 9 (6), 641-650 (1975) 13. C.I. Simionescu , V. Rusan, A. Liga and V. I. Popa

Considerations on some copolymers obtained by radical mechanisms Romanian-USA Seminar on Polymer Chemistry, Jassy, September, 21-26, 1976

14. C.I. Simionescu , V. I. Popa, and V. Rusan Considerations upon biological possibilities of waste waters purification Celuloza si Hartie , 25 ( 2), 76-78 (1976)

15. C.I. Simionescu , S. Dumitriu and V. I. Popa Mechanisms und Kinetic der Zersetzung von Methan-Wasser-Gemischen in kalten Plasma Z. Naturforsch. , 31b, 466-471 (1976) 16. C.I. Simionescu , V. I. Popa, V. Rusan and A. Liga The influence of structural units distribution on macromolecules conformation of alginic acid Cellulose Chemistry and Technology, 10 (5), 587-594 (1976)

17. C.I. Simionescu , S. Dumitriu, V. Bulacovschi, B.C. Simionescu and V. I. Popa Synthése de quelque intermédiaries implique dans l’apparition des biomonoméres

dans les systémes CH4/NH3 et CH4/NH3/H2/O (XI) C.R. Acad. Sci. Paris, Ser. C. 283, 515-518 (1976) 18. P. Obrocea and V. I. Popa

Upon the printing capacity of papers containing beech wood Kraft pulp. I. Noncallandered papers

Celuloza si Hartie, 26 (1), 19-27 (1977) 19. P. Obrocea and V. I. Popa Upon the printing capacity of papers containing beech Kraft pulp. II. Callandered papers Celuloza si Hartie, 26 (2), 58-62 (1977) 20. R. Butnaru, V. I. Popa, S. Petrovan and G. Rozmarin Correlations between the chemical composition of Kraft pulps and the pulping parameters Cellulose Chemistry and Technology , 11(6), 697-702 (1977) 21. C.I. Simionescu and V. I. Popa Some problems of chemical upgrading of wood stock to the requirements of modern society (Paper presented at the Symposium “Forest and Man in the modern Society, Iassy, June, 11, 1977, p.4-11)

22. C.I. Simionescu , S. Dumitriu, V. I. Popa ,V. Bulacovschi, and B.C. Simionescu Modele chimique de synthéses des précurseurs de la matiére vivante Rev. Roum. Chim., 23 (1), 89-102 (1978) 23. C.I. Simionescu , S. Dumitriu,V. Bulacovschi, V. I. Popa and B.C. Simionescu Molekulare Reaktionen in Kalten Methan-Wasser-Plasmen und die Wirkung von UV-Bestrahlung Z. Naturforsch. , 33b, 390-395 (1978)

24. C.I. Simionescu , S. Dumitriu,V. Bulacovschi and V. I. Popa Synthesis of saccharides by cold plasma decomposition in methane-water-apatite system Cellulose Chemistry and Technology , 12 (2), 143-152 (1978) 25. C.I. Simionescu , S. Dumitriu,V. Bulacovschi and V. I. Popa Bioactive Polymers. VI. Cellulose derivatives as support for enzyme immobilization Cellulose Chemistry and Technology , 12 (3), 253-257 (1978)

26. C.I. Simionescu , S. Dumitriu,V. Bulacovschi and V. I. Popa

Synthesis of sugars and their phosphoric esters in cold plasma, using a methane-water- apatite system

Cellulose Chemistry and Technology , 12 (5), 585-591 (1978) 27. C.I. Simionescu , S. Dumitriu,V. Bulacovschi and V. I. Popa Syntheses von Alkohols und Säure durch Zersetzung der Methan-Wasser Gemischen in kalten Plasma Buletinul Institutului Politehnic din Iasi, Tomul XXIV (XXVIII), Fasc.1-2, 75-86 (1978) 28. C.I. Simionescu , S. Dumitriu,V. Bulacovschi and V. I. Popa Bioactive polymers. III. Cellulose derivatives as support for biological active compounds J. Polym. Science. Polymer Symposium, 66, 171-183 (1979) 29. G. Rozmarin and V. I. Popa

Lignin valorification investigations. I. Characterization of lignocellulose resulted from furfural fabrication

Celuloza si Hartie, 29 (2), 54-56 (1980) 30. V. I. Popa and G. Rozmarin On the possibilities of extending wood chemical valorification Celuloza si Hartie, 30 (4), 9-13 (1981) 31 C.I. Simionescu, V. Rusan, B. Dragomir, V. I. Popa and D. Rosu Complex valorification of biomass. I. Actual and future tendencies within the raw materials and energy world crisis Celuloza si Hartie, 30 (4), 156-160 (1981)

32.C.I. Simionescu, and V. I. Popa Petrochemistry - lignochemistry dispute and modern society development Revista de Chimie , 33 (2), 109 -114 (1982) 33.G. Rozmarin , V. I. Popa, E. Mironescu, E. Nechifor Research upon lignocellolose- ammonia interaction Buletinul stiintific studentesc al Institutului Politehnic Iasi, sectia I - Chimie si Inginerie Chimica, vol. IV, 7-15, (1981) 34.C.I. Simionescu, , B. Dragomir, D. Rosu , V. Rusan and V. I. Popa Natural photosynthesizing pigments. I. Progresses in the field of their utilization Celuloza si Hartie, 31 (1), 36-40 (1982) 35.C.I. Simionescu, V. I. Popa , V. Rusan, A. Stoleriu, M. Rusan, and B. Dragomir Complex processing of biomass. II. Microbiological degradation of cellulosic materials Celuloza si Hartie, 31 (4), 169-172 (1982)

36.C.I. Simionescu, V. Rusan , V. I. Popa , A. Liga, M.Ciubotariu, B. Dragomir, A. Caranfil, V. Petrovici and V. Nuta Actual problems on the complex valorification of forest biomass (New possibilities of reintegrating by products in the economic cycle, Piatra Neamt, Aprilie, 23, 1982, vol. I, p. 185-206) 37.G. Rozmarin and V. I. Popa Options concerning the valorification of some lignocellulosic materials (New possibilities of reintegrating byproducts in the economic cycle, Piatra Neamt, Aprilie, 23, 1982, vol. I, p. 207-216) 38. C.I. Simionescu, , B. Dragomir, D. Rosu , V. Rusan and V. I. Popa Natural photosynthesizing pigments. II. Isolation and purification methods (Paper presented at the Second National Congress of Chemistry, Bucharest, September, 7-10, 1981) 39. C.I. Simionescu, V. Rusan V. I. Popa and B. Dragomir

Complex valorification of biomass. III. Upon the possibilities of obtaining chemical products and liquid fuels

(Paper presented at the VIIth Symposium on Cellulose Chemistry and Technology, Iassy, September, 3-5, 1982)

40. C.I. Simionescu, , B. Dragomir, V. Rusan and V. I. Popa Natural photosynthesizing pigments. III. Contributions to the study of the

determination methods (Paper presented at the VIIth Symposium on Cellulose Chemistry and Technology, Iassy, September, 3-5, 1982) 41. V. I. Popa and G. Rozmarin Lignin valorification investigations. II . Lignocellulose nitration. Celuloza si Hartie, 32 (1), 15-20 (1983) 42. G. Rozmarin and V. I. Popa Researches in lignin utilization. III. Lignocellulose chlorination Celuloza si Hartie, 32 (1), 34-36 (1983) 43.G. Rozmarin and V. I. Popa

Some aspects upon the chemistry of certain vegetal products (Papers presented at the Symposium organized by the University of Galatzi and

the Galatzi Iron and Steel Aggregate Works issued in the volume “Energetics. Technologies from other industries ,p.264-273,vol.4,1983) 44. C.I. Simionescu, , V. Rusan V. I. Popa , B. Dragomir, C. N. Cascaval and D. Rosu

The complex conversion of biomass.Energy and chemical products by integral processing system (Paper presented at XXIXth Symposium on Macromolecules,IUPAC Bucharest,September 5-9,1983, Section I, p.16)

45. G. Rozmarin and V. I. Popa Research on lignocellulose - ammonia interaction Cellulose Chemistry and Technology , 17 (4), 363-370 (1983) 46. C.I. Simionescu, V. I. Popa , V. Rusan, A. Stoleriu, and M. Rusan Contribution to the biochemical conversion of cellulosic materials (Paper presented at the XXIXth Symposium on Macromolecules, IUPAC, Bucharest, 5-9, 1983, Section I, p. 61) 47. C.I. Simionescu, V. I. Popa , V. Rusan, and M. Rusan

Options concerning the application of biochemical procedures to turn into good account of cellolignins

Cellulose Chemistry and Technology , 18 (6), 553-559 (1984) 48. C.I. Simionescu, J. Bulacovschi, V. Petrovici, V. I. Popa , E. Chis, F. Nicolau and V. Rusan Researches dans le domain de la mise en valeur de l’ecorce de bois. L’extraction alcaline Bulletin de Liaison no. 12 du Groupe Polyphenols. Narbonne, France, Compte - rendu des Journees Internationales d’Etude et de L’assemble Generale, 1984, Plovdiv - Bulgaria, 31 mai - 4 iunie, p. 487-496 49. V. I. Popa and I. Magyari Researches on the characterization of lignocellulose nitration products Buletinul stiintific studentesc al Institutului Politehnic Iasi, sectia I - Chimie si tehnologie Chimica, vol. II, 89-95, (1984) 50. V. Rusan, C.N. Cascaval, D. Rosu and V. I. Popa

Complex and integral valorification of Asclepias syriaca L latex bearing plant. I. Considerations upon its biological and chemical potential

Buletinul Institutului Agronomic “ Ion Ionescu de la Brad”, Iasi, Seria Agronomie, vol. 28,

p 107 - 110 (1984) 51. C.I. Simionescu, V. Rusan and V. I. Popa

On the valorification of vegetal biomass (Paper presented at the VIIIth Symposium on Cellulose Chemistry and Technology, Iassy, September, 4-6, 1985) 52. C.I. Simionescu, V. Rusan V. I. Popa , M.M. Macoveanu, J. Bulacovschi, G. Cazacu, M. Popa and F. Nicolau The use of vegetal alkaline extracts as phenol substitutes (Paper presented at the VIIIth Symposium on Cellulose Chemistry and Technology, Iassy, September, 4-6, 1985) 53. C.I. Simionescu, V. Rusan and V. I. Popa Future of synthetic papers within the context of the competition synthetic fibers - cellulosic fibers Memoriile Sectiilor Stiintifice, Seria IV, Tom VI, nr. 1, 1983, p. 79-88, Editura Academiei,

1985 54. C.I. Simionescu, V. I. Popa , V. Rusan, and M. Rusan

The influence of the enzymatic hydrolysis conditions on the transformation degree of different lignocellulose materials

Cellulose Chemistry and Technology , 19 (5), 525-530 (1985) 55. G. Rozmarin and V. I. Popa

Investigations in the field of lignin valorification. IV. Characterization of lignocellulose nitration products

Cellulose Chemistry and Technology , 19 (5), 549-556 (1985) 56. V. I. Popa Investigations in the field of lignin valorification. V. Products of oxidative nitration Cellulose Chemistry and Technology , 19 (6), 657-661 (1985)

57. C.I. Simionescu, V. I. Popa , V. Rusan, and M. Rusan Complex processing of biomass. Enzymatic hydrolysis of lignocellulosic materials

Proceedings of International Symposium on Fiber Science and Technology, organized by the Society of Fiber Science and Technology, Japan, on its 60th Anniversary, ISF - 85, August, 20- 24 1985, Hakone, p. 296

58. V. I. Popa and G. Rozmarin Turning the good account of lignin. VI. Nitration, sulfonation, and reduction products Celuloza si Hartie, 35 (4), 104-109 (1986) 59. C.I. Simionescu, V. I. Popa, M. Rusan and C. Vitalaru Influence of the environmental conditions on the growth of Trichoderma sp. Boletim da Sociedade Broteriana, vol. LXX (2a serie): 222-232 (1986) 60 C.I. Simionescu, V. I. Popa , S. Maxim, V. Rusan, and M. Rusan On the possibilities of immobilization of enzymes from Aspergillus niger Reactive Polymers, 5(2), 191-195 (1987) 61. C.I. Simionescu , V. Rusan and V. I. Popa Options concerning phytomass valorification Cellulose Chemistry and Technology , 21 (1), 3-16 (1987) 62. G. Rozmarin, V. I. Popa and S. Ifrim Lignin valorification . VII. The chromophore potential of some lignin materials Celuloza si Hartie, 36 (1), 3-9 (1987) 63. G. Rozmarin, V. I. Popa, M. Finichiu and A. Pavalache Lignin valorification. VIII. Lignocellulosic medicinal preparations

Celuloza si Hartie, 36 (2), 84-87 (1987) 64. C.I. Simionescu , G. Rozmarin and V. I. Popa On the chromophore potential of some lignin materials Holzforschung u. Holzverwertung, 39 (5), 112-116 (1987) 65. C. I. Simionescu and V. I. Popa Contributions to the valorifications of beech wood bark Cellulose Chemistry and Technology , 21 (3), 279-287 (1987) 66. C.I. Simionescu, V. Rusan V. I. Popa , M.M. Macoveanu, J. Bulacovschi, G. Cazacu, M. Popa and F. Nicolau Contributions to the utilization of alkaline extracts from plants as phenol substitutes Cellulose Chemistry and Technology , 21 (4), 349-357 (1987) 67. C.I. Simionescu, V. Rusan, G. Cazacu, M.M. Macoveanu, V. I. Popa and A. Ioanid

Polyphenolepoxy resins based on alkaline extracts from latex - bearing plant Asclepias syriaca L. II. Physical and chemical characterization

Holzforschung u. Holzverwertung, 39 (3), 62-65 (1987) 68.C.I. Simionescu, V. Rusan, G. Cazacu, M.M. Macoveanu, V. I. Popa , M. Popa and J.Bulacovschi Polyphenolepoxy resins based on alkaline extracts from latex - bearing plant Asclepias syriaca L. I. Influence of the synthesis conditions

Cellulose Chemistry and Technology , 21 (6), 639-649 (1987) 69. C. I. Simionescu and V. I. Popa Implications of biotechnology in the pulp and paper industry Celuloza si Hartie, 37 (1), 3-10 (1988) 70. C.I. Simionescu, V. I. Popa, M. Rusan ,C. Vitalaru and V. Rusan Biodegradation of vegetal materials under the action of some mixed culture of microorganisms Cellulose Chemistry and Technology , 22 (3), 293-301 (1988) 71. V. I. Popa Complex - forming capacity of lignocellulose and nitro- lignocellulose Celuloza si Hartie, 37 (4), 170-175 (1988)

72. C.I. Simionescu, J. Bulacovschi , V. I. Popa , M. Popa , V. Nuta,V. Rusan New possibilities of using alkaline extracts from vegetal biomass in adhesive systems for wood industry Holzforschung u. Holzverwertung, 40 (6), 136-140 (1988) 73. V. I. Popa and R. Ciobanu Utilization of accelerated ageing principle in analysis and elaboration of paper technologies Paper presented at Symposium on Contribution of Polytechnic Teaching at the Romanian Industry, vol. X, p.163-165, 1988 74. V. I. Popa Interaction between lignocellulose and urea Celuloza si Hartie, 38 (1), 22-26 (1989)

75. C.I. Simionescu and V. I. Popa Influence of copper ions upon enzymatic systems of cellulolytic fungus Trichoderma lignorum

Paper presented at Fifth European Symposium on Carbohydrates EUROCAB V- August, 21- 25, 1989, Prague - Czechoslovakia

76. N. Badea, E. Szentkuti, A. Daringa, V. I. Popa and C. Ciobanu Lignocellulose and polyhydroxyurethane as tanning agents

(Paper presented at Fifth Symposium on Leather Chemistry and Technology, Iassy, Oct., 19-20, 1989, vol.I, p. 45-54) 77. C.I. Simionescu, M. Popa, P. Andriescu, V. I. Popa , A. Cernatescu - Asandei, D. Gavrilescu, V. Rusan and I. Diaconu

Research in the field of upgrading of lignosulfonates I. Chemico - structural modifications by oxiammonolysis reactions

Celuloza si Hartie, 38 (2), 63-69 (1989) 78. C.I. Simionescu, V. I. Popa, M. Rusan and C. Vitalaru

Study of the adaptation process of some microrganisms by repeated cultivation on lignin substrates

Cellulose Chemistry and Technology , 23 (4), 447-488 (1989) 79. C.I. Simionescu and V. I. Popa Advances in the Chemistry of Wood and Cellulose in Romania - in Cellulosic

Utilization - Research and Rewards in Cellulosics. ed. H. Inagaki and G.O. Phillips, Elsevier Appl.Sci.London and New York, 1989, p. 257-263

80. E. Bobu and V. I. Popa Chemically modified lignin - multifunctional additive in papermaking Cellulose Chemistry and Technology , 23 (6), 723-731 (1989)

81. C.I. Simionescu, E. Marcoci, V. Rusan, V. Nuta, E. Leonte, J. Bulacovschi, V. I. Popa and D. Gavrilescu

Contributions to the complex turning to good account of phytomass. Utilization of vegetal alkaline extracts as plant growth stimulators

Cellulose Chemistry and Technology , 23 (6), 693-700 (1989) 82. C.I. Simionescu, V. Rusan, M. Popa, V. Nuta, J. Bulacovschi and V. I. Popa Polyphenols from phytomass. IV. Optimization of alkaline extraction Celuloza si Hartie, 38 (3), 91-94 (1989) 83. C.I. Simionescu, V. I. Popa, V. Colf, V. Rusan, C. Marinescu and R. Bodirlau Application of chemical - biotechnological principles in upgrading of wood bark Celuloza si Hartie, 38 (4), 164-168 (1989) 84. C.I. Simionescu, V. I. Popa, M. Popa and S. Maxim On the possibilities of immobilization and utilization of some cellulase enzymes J. Applied Polym. Sci. , 39 (9), 1837 - 1846 (1990) 85. M. I. Popa and V. I. Popa Application of HPLC in the analysis of polysaccharides from plants Celuloza si Hartie, 39 (2-3), 85-87 (1990) 86. C.I. Simionescu, V. I. Popa, D. Gavrilescu, M.Popa and C. Vitalaru

On the biodegradation of lignosulfonic products with microorganisms adapted by repeated cultures on lignin substrates

Cellulose Chemistry and Technology , 24 (3), 389-396 (1990) 87. C.I. Simionescu, V. I. Popa, M. Rusan, C. Vitalaru, V. Rusan, C. Marinescu and M.I. Popa

Influence of some mutagene agents upon the production of cellulolytic complex by Chaetomium elatum microorganism

Cellulose Chemistry and Technology , 24 (4), 445-451 (1990)

88. V. I. Popa, M.I.Popa , M. Rusan and C. Vitalaru Influence of the adaptation of some microorganisms through repeated cultivation on lignin substrates upon vanillin biotransformation Cellulose Chemistry and Technology , 24 (6), 783-789 (1990)

89. C.I. Simionescu, M. Popa, C. Cotofana, P. Andriescu, , A. Cernatescu - Asandei,

V. Rusan, V. I. Popa , D. Gavrilescu and I. Donose Investigations in the field of lignosulfonates turning to good account. II. Substitution and condensation reactions Celuloza si Hartie, 39 (4), 113-117 (1990) 90. V. Rusan and V. I. Popa Functional natural polymers with aromatic structure Celuloza si Hartie, 39 (4), 99-112 (1990)

91. C.I. Simionescu, V. I. Popa, V. Rusan, V. Colf, C. V. Zanoaga, C. Marinescu, I. Bara and S. Vantu Study on the action of some wood bark polyphenolic compounds upon plant growth Cellulose Chemistry and Technology , 25 (3-4), 187-195 (1991)

92. V. Rusan and V. I. Popa Valorification of vegetal secondary resources in connection with biotechnology progresses

Memoriile Sectiilor Stiintifice ale Academiei Romane., Seria IV, Tom XIII, 1 (1990), p. 128- 138, Editura Academiei, 1991

93. P. Rotinberg, C. I. Simionescu, S. Kelemen, V. Rusan, J. Bulacovschi, V. Nuta and V. I. Popa Cytostatic and antitumor activity of the polyphenolic preparation pA2 Rev.Roum. Biol.-Biol. Anim., 36, (1-2), 67-71 (1991) 94. C.I. Simionescu, C. Marinescu, R. Chirica, S. Maxim and V. I. Popa Upon the hydrolysis of some vegetal polysaccharides by immobilized enzyme preparations Cellulose Chemistry and Technology , 26 (1), 3-10 (1992) 95. C.I. Simionescu, , J. Bulacovschi V. Nuta , M. Popa, V. I. Popa, V. Petrovici, E. Chis and L. Dumitrescu Study of modification of some lignocellulosic and polyphenols used for adhesive compositions Celuloza si Hartie, 41 (2), 30 -33 (1992) 96. V. I. Popa, M. Popa, C. Cotofana, C. Beleca and D. Gavrilescu Modifications of ammonia lignosulfonates by reaction with formaldehyde and urea Cellulose Chemistry and Technology , 26 (4), 413-419 (1992) 97. V. Rusan and V. I. Popa Correlations between the chemical components of wood and synthetic polymers Cellulose Chemistry and Technology , 26 (5), 591-606 (1992)

98. V. I. Popa 40 Years of Romanian education and research in the field of cellulose and paper Cellulose Chemistry and Technology , 26 (6), 649-661 (1992) 99. V. I. Popa and M. Popa On the biostimulation of plant growth induced by polyphenolic compounds JIEP’92 , volume 16, Tomme 1 p. 312-316, 1992 100. C.I. Simionescu, V. I. Popa, C. Marinescu, V. Colf and D. Timpu

Upon the biosynthesis and characterization of cellulasic enzymes. I. Influence of the medium composition

Cellulose Chemistry and Technology , 27 (4), 385-392 (1993) 101. V. I. Popa , V. Dulman and L. Odochian Studies on the retention of [Cu(NH3)4]2+ ions by spruce wood bark

Cellulose Chemistry and Technology , 27 (5), 505-511 (1993) 102. V. I. Popa , V. Dulman and L. Odochian

[Cu(NH3)4]2+ retention on spruce wood bark. Spectral and thermogravimetric characterization Cellulose Chemistry and Technology , 27 (6), 671-677 (1993) 103. V. Dulman, V. I. Popa , and L. Odochian Concentration of direct yellow 126 dye with microbiological collectors. European Conference on Analytical Chemistry. Euroanalysis. VIII. Edinburgh, Scotland, UK Sept. 5-9, 1993 104. P. Obrocea, V. I. Popa , D. Gavrilescu, R. Stancana, C. Beleca and N. Brateanu Research concerning alkaline cooking with oxidized black liquor Celuloza si Hartie, 42 (4), 13 -15 (1993) 105. V. I. Popa and I. Spiridon

Research in the field of lignin biodegradation. I. Microorganisms and enzymes involved in biodegradation process

Celuloza si Hartie, 42 (4), 27 -32 (1993) 106. E. Bobu, V. I. Popa and C. Beleca Modified lignin in composite structures Cellulose Chemistry and Technology , 28 (1), 55-64 (1994) 107. V. I. Popa and I. Spiridon Researches regarding lignin biodegradation. II. Isolation and characterization of enzymes involved in biodegradation process Celuloza si Hartie, 43 (2), 28 -30 (1994) 108 V. I. Popa and I. Spiridon

Researches regarding lignin biodegradation. III. Methods for controlling the biodegradation process

Celuloza si Hartie, 43 (2), 31 -34 (1994) 109. V. I. Popa , E. Bobu, C. Beleca and V. Negreanu

Papermaking additives from kraft lignin Cellulose Chemistry and Technology , 28 (4), 445-467 (1994) 110. V. I. Popa and C. Beleca On the role played by some natural products with aromatic structure in the

processes of plant growing Cellulose Chemistry and Technology , 28 (6),613-620 (1994) 111. V. I. Popa Lignin as a component of composite materials Lignin Newsletter, No. 2, 4-5 (1994) 112. V. I. Popa and M. Popa Contributions to the study of some lignin and polyphenolic products Celuloza si Hartie, 43 (4), 13 -25 (1994)

113. V. I. Popa and I. G. Breaban Lignocellulosic materials - component of biodegradable composite structures Mediul Inconjurator , 5 (3), 43-47 (1994) 114. V. I. Popa , V. Negreanu, E. Bobu and C. Beleca Possibilities to use of some kraft lignin derivatives in wood industry Celuloza si Hartie, 44 (1), 15 -20 (1995) 115. V. I. Popa , I. G. Breaban and C. Beleca Contributions to the upgrading of pollutant byproducts from wood processing

Zilele Academice Timisene, 25-27 mai 1995, vol.III, p. 153-157, Ed. Mirton, Timisoara 116. V. I. Popa and I. G. Breaban Biodegradability of polymers - defect or quality? Conference at the Vth Communications Sessions in Polymer Science, Jassy, 1-5 June, 1995 117. I. Spiridon, M. Popa and V. I. Popa On some characteristics of lignin and polyphenolic products separated from spruce bark Cellulose Chemistry and Technology , 29 (2),115-121 (1995) 118. V. I. Popa, I. Spiridon and E. Bobu Study of enzymatic treatments influence in obtaining of the pulp from wheat straw The 8th International Symposium on Wood and Pulping Chemistry, June, 6-9, 1995, Helsinki Finland, Proceedings, vol. II, p. 461-466 119. V. I. Popa, I. Spiridon and E. Bobu Hemicelluloses behaviour in enzymatic reaction Sixth International Symposium on Biotechnology in the Pulp, Paper Industry, Vienna, Austria, June, 11-15, 1995

120. R. Andarache, E. Potchides and V. I. Popa Romanian pulp and paper industry Tappi J. 78(8), 55-62 (1995) 121. C. Vasile, V. I. Popa , A. Paun, M. Sabliovschi, G. Cazacu and M.M. Macoveanu Environmental impact of polymers Cellulose Chemistry and Technology , 29 (3), 361-386 (1995) 122. V. I. Popa and I. G. Breaban Cellulose as a component of biodegradable composites Cellulose Chemistry and Technology , 29 (5), 573-585 (1995) 123. V. I. Popa and I. G. Breaban Influence of the utilization of some waste lignins in the obtainment of thermoinsulating composites Ist Regional Symposium “Chemistry and Environment”, September, 25-29, 1995, Vrnjacka Banja Yugoslavia, Proceedings, vol. 2. p. 755-758 124. V. I. Popa , C. Beleca, M. Popa, R. Bodirlau and P. Vidrascu Research on the physiological action of some polyphenolic and ligninic products upon plant growth Rev. Roum. Chim. , 40 (7-8), 691-698, (1995) 125. V. I. Popa, M. Birsan, C. Stanciu and I. Spiridon Some considerations on pulp biobleaching Celuloza si Hartie, 44 (3), 3 -10 (1995) 126. E. Poppel, G. Borhan, C. Stanciu and V. I. Popa Romanian Scientific Research in the field of Pulp and Paper ( Paper presented at Paper Science Meeting, Oct., 18, 1995, Manchester, U.K.) Celuloza si Hartie, 44 (4), 6 -9 (1995) 127. V. I. Popa Interference between natural and synthetic polymers 2eme Colloque Franco-Roumain des Polymers Eveux-L’Arbreles, 9-11, Oct., 1995, France

128-138. Papers presented at Eleventh International Symposium on Cellulose Chemistry and Technology, September, 12-14, 1995 Iassy, Romania

128. E. Bobu, V. I. Popa and D. Ionescu Enzymatic treatments for office waste paper processing 129. V. I. Popa , L. Dumitrescu, V. Petrovici, D. Mihai, S. Lungoci, L. Mititeanu, and G. Baciu Some aspects concerning the utilization of acrylic copolymers and iron and chromium lignosulfonates as agent for wood preservation

130. V. I. Popa and I. G. Breaban Some aspects of biodegradability of wood grafted copolymers with acrylic monomers 131. V. I. Popa , C. Beleca, M. Popa and R. Bodirlau The influence of some polyphenolic and ligninic products on the biostimulation of plant growing 132. V. I. Popa , C. Beleca , E Truta and I. Bara The influence of polyphenols extracted from Picea excelsa L. on individual biological systems 133. V. I. Popa , V. Negreanu, C. Beleca, E. Bobu and I. G. Breaban Study of utilization of some modified lignins in the obtaining composite materials 134. C. I. Simionescu, V. I. Popa , L. Odochean and C. Marinescu Kinetic studies on the enzymatic hydrolysis of cellulose 135. V. I. Popa and I. Spiridon Study on the action of hemicellulases enzymes on different lignocellulosic materials

136. V. I. Popa Contributions to the modifications reactions of some polyphenols and lignin products 137. V. I. Popa, C. Beleca, E. Delinski, C. Zgardan, M. Popa and A. Airinei Study of coupling reactions between diazonium salts and polyphenolic compounds extracted from spruce wood bark 138. M. Gaspar, V. I. Popa and T. Kupka Properties prediction for some cellulose derivatives 139. V. I. Popa Round Table Discussion: Implications of biotechnology in the field of natural polymers and environmental protection Zilele Academice Iesene , Oct., 5-8, 1995, Iasi 140. V. I. Popa Cristofor I. Simionescu - Founder of Pulp and Paper Romanian School Zilele Academice Iesene , Oct.,5-8, 1995, Iasi

141.V. I. Popa Aspects concerning the application of some enzymatic treatments in the pulp

and paper industry Lecture presented at The Third Symposium organized by S. C. Somes S. A.

Dej, April 23-25, 1996. 142. V. I. Popa, I. G. Breaban, A. Stoleriu and I. Agherghinei

Wood Chemical Modification for Composite Structures Proceedings of ICWSF ’96, Sopron, Hungary, p. 276-285 (1996)

143. V. I. Popa and I. G. Breaban Contributions to the complex biomass upgrading Proceedings of the Scientific Communications Meeting of “Aurel Vlaicu”

University, Third Edition, Arad, May 16-17, vol. 11, 55-60 (1996) 144. V. I. Popa and I. Spiridon

Influence of the treatment with hemicellulase enzymes on the bleaching capacity of different lignocellulose materials

International Pulp Bleaching Conference, Tappi Proceedings, p. 579-583 (1996)

145. V. I. Popa, E. Bobu and D. Suflet Contributions to the office waste papers deinking Celuloza si Hirtie , 45(2), 36-44 (1996)

146-154 Papers presented at the Second International Symposium “High Performance Processes and Equipment for Pulp and Paper Industry”, Braila, June 3-7,

1996 146. V. I. Popa

Contributions to the studies of biodegradation processes and biosynthesis of components from biomass

147. P. Obrocea, D. Gavrilescu, V. I. Popa and C. Beleca Totally chlorine free bleaching. The use of sodium nitrate-nitrite mixtures in

the kraft spruce pulp bleaching. 148. V. I. Popa and C. Beleca

Polyphenols from spruce wood bark - potentially plants growing bioregulators. 149. V. I. Popa and I. Spiridon

Influence of enzymatic treatment on properties of pulp from wheat straw. 150. V. I. Popa and I. G. Breaban

Study of modification of cellulose materials for composite structures. 151. V. I. Popa and C. Marinescu

Influence of some reaction conditions upon the rate of enzymatic hydrolysis of cellulose.

152. V. I. Popa and A. Andriescu Studies in the field of mimetic catalysts

153. V. I. Popa and C. A. Teaca Researches in the field of photosynthetic biosensors as indicators of environmental pollution.

154. V. I. Popa, I. Bara, D. Cotzur and C. Marinescu The action of some polyphenols upon rediferentiation plant processes. 155-170 Papers presented at the Academy Days, Jassy, October 10-13, 1996

155 V. I. Popa, M. Popa and C. Beleca Contributions to the evaluation of the role of polyphenolic compounds from

wood bark as regulators plant growth. 156. A. Andriescu and V. I. Popa

Researches in the field of mimetic catalysts. Oxidation reactions. 157. A. Andriescu, S. Maxim and V. I. Popa

Crosslinked copolymers having hydroxyamic groups as precursor for specific catalysts.

158. C. A. Teaca and V. I. Popa Influence of chlorolignins on plants’ development.

159. D. Cotzur, C. Marinescu, V. I. Popa and I. Bara Studies concerning polyphenols compounds on plants citodifferentiation.

160. M. Popa, R. Bodarlau, V. I. Popa, C. Cotofana and C. Beleca Studies on the influence of the thermopower ash on wheat plants growth.

161. R. Bodarlau, V. Dulman, M. Popa, V. I. Popa and C. Cotofana Influence of the thermopower ash on the accumulation of the elements and

biosynthesis of enzymatic complexes of wheat plants.

162. V. I. Popa and I. G. Breaban Study of some modification reactions of cellulosic materials for composite products.

163. N. Tudorachi, M. Rusu. V. I. Popa and I. G. Breaban Studies in the field of biodegradable materials. I. Trials concerning products

based on polyethylene and natural polymers. 164. I. Spiridon and V. I. Popa

Influence of enzymatic preparations in the wheat straw pulp treatments. 165. C. Marinescu, L. Odochian and V. I. Popa

The establishment of some correlation between cellulosic substrates nature and their behaviour in enzymatic hydrolysis.

166. V. I. Popa and I. Spiridon Contributions to the studies of biodegradation and biosynthesis of components from biomass. The Third Meeting of Pulp and Paper Industry of the Balkan Countries,

November 6-8, Thessaloniki, Greece (1996) 167. V. I. Popa and I. G. Breaban

Study of biodegradation of modified wood by grafting with acrylic monomers. 10th International Symposium on Biodeterioration and Biodegradation, C. V.

DECHEMA, Hamburg, Germany, September 15-18, 1996, pp. 265-273. 168.V. I. Popa and I. G. Breaban

Study of the utilization of waste lignins from the fabrication of pulp in the obtaining of thermoinsulating composites.

Conference “Use of Recycled Wood and Paper in Building Applications”, Madison, Wisconsin, USA, September 9-11, 1996.

169.V.I.Popa,C.Beleca,E.Croitoru, C.Zgardan, M.Popa and A.Airinei Contributions to the study of some polyphenolic products from wood bark. I. Acetone extraction Celuloza si Hirtie ,45 (3) 34-45 (1996) 170. V.I.Popa ,I.Spiridon and E.Bobu Some preliminary data on the use of Asclepias syriaca seed hairs in pulp and

paper manufacture Cellulose Chemistry and Technology, 30(3-4),223-227 (1996) 171. V. Dulman, L. Odochian, V. I. Popa and S. Surdu

Concentration of Direct Yellow 126 dye with Microbiological Collectors Analele Stiintifice ale Univ. “Al. I. Cuza” Iasi, Tom IV, s. Chimie, 67-76 (1996) 172. V. I. Popa, C. Beleca, M. Popa, R. Bodirlau, I. Bara and E. Truta Studies regarding the behaviour of some individual biological systems under

polyphenolic products action Bol. Soc. Brot., Ser.2, 67, 245-255 (1996) 173. L.Dumitrescu, V. I. Popa, V.Petrovici and G. Baciu

Wood preservation agents based on acrylic copolymers and metal complexed lignosulfonates Bulletin of the Transilvania University of Brasov,Vol.3 (38) – New Series,Series B,63-68 (1996)

174. V. I. Popa and I. Spiridon Influence of Hemicellulase Enzymes on Different Lignocellulosic Materials Roum. Biotechnol. Lett., 2(3), 201-206 (1997) 175. V. I. Popa, D. Gavrilescu and N. C. Anghel The use of sodium nitrate and nitrite in softwood kraft pulp bleaching Celuloza si Hirtie , 46(1), 25-31 (1997)

176. D. Cotzur, C. Marinescu, V. I. Popa, I. I. Bara and Cr. I. Simionescu

The effect of polyphenolic compounds on the redifferentiation process in Daucus carota L. Analele Stiintifice ale Univ. “Al. I. Cuza” Iasi, Tom XLIII, s. II Biologie vegetala, 129-132 (1997) 177. E. Bobu, V. I. Popa and M. Popa Lignin and its derivatives as components of composite materials Proceedings of Fourth International Conference on Composites Engineering, Big Island of Hawaii, July 6-12, 1997, Edit. D. Hai, p. 161-162 178. I. G. Breaban and V. I. Popa Utilization of waste lignins from the fabrication of thermoinsulating composites Proceeding of the Symposium “The Use of Recycled Wood and Paper in Building Application Madison, Wisconsin, Sept. 1996, Publ. 1997 by the Forest Products Society, p. 185-188

Academy Days, 22-24 May 1997, Timisoara

.179. I. G. Breaban, N. Tudorache, V. I. Popa, M. Rusu, A. Stoleriu Structural characteristics of some composite materials based on wood / LDPE 180. V. I. Popa, I. G. Breaban Thermoinsulating composite materials based on lignocellulose products 181. I. G. Breaban, V. I. Popa, L. I. Padurariu Contributions to the modification of lignocellulose materials and their behaviour in the enzymatic hydrolysis

Academy Days, 9-12 Oct. 1997, Iasi 182. G. Cazacu, C. Vasile, E. Costea, A. Stoleriu, M. M. Macoveanu, D. Ciolacu, V. I. Popa Kinetic aspects concerning thermooxidative decomposition of cellulose powders 183. A. Andriescu, V. I. Popa Cleavage Cα - Cβ linkages in the lignin model compounds under the action of

laccase and catalytic mediators 184. M. Popa, V. I. Popa, R. Bodarlau, C. Cotofana Influence of thermopower ash on development and chemical composition of wheat plants 185. I. Spiridon, V. I. Popa Study of behaviour of lignocellulose materials in enzymatic hydrolysis 186 .V. I. Popa, D. Ciolacu, F. Ciolacu Structural modifications of pulps in the finishing process of paper 187. C. Marinescu, V. I. Popa Modifications of some parameters in the time of enzymatic hydrolysis of

cellulose in different conditions

III - ème Seminaire Franco-Roumain sur les Polymers, 1-6 Sept, 1997, Neptune -Olympe,

Roumanie 188. V. I. Popa et I. G. Breaban Correlation entre les modifications chimiques des materiaux cellulosiques et leur stabilité Biologique

The 3rd International Conference on the Development of Forestry and Wood Science/Technology

Sept 29th - Oct 3rd, 1997, Belgrade, Yugoslavia 189. V. I. Popa, I. G. Breaban, L. Padurariu and L. Ciovica Relationship between lignocellulosics chemical modification and enzymatic hydrolysis Proceedings of ICFWST ’97 Addendum, p. 35-42 190. I. G. Breaban, N. Tudorache, V. I. Popa and M. Rusu LDPE/lignocellulosics based composites - biodegradability behaviour Proceedings of ICFWST ’97 Addendum, p. 43-50 4th Meeting of Pulp and Paper Industry of Balkan Countries, Oct 8th - 10th, 1997,

Istanbul, Turkey

191. V. I. Popa and I. Spiridon Contributions to the obtaining wheat straw pulps 192. L. Dumitrescu, R. Tica, V. I. Popa and V. Petrovici Wood preservation agents based on acrylic copolymers and metal complexed lignosulfonates Conference of Chemistry and Chemical Engineering, 16-18 Oct., 1997, Bucuresti 193. L. Dumitrescu, V. I. Popa, V. Petrovici, R. Tica, G. Baciu Researches concerning the action of some wood bioprotection agents and metal complexes of lignosulfonates

Conference of Faculty of Industrial Chemistry, 23-25 Oct, 1997, Iasi 194. L. Dumitrescu, R. Tica, V. Petrovici, V. I. Popa Contributions to the polymerization of acrylic monomers in the presence of lignosulfonates 195. D. Gavrilescu, P. Obrocea, V. I. Popa, T. Moraru Researches concerning the pulp bleaching with the reduced chlorine dioxide consumption 196. I. G. Breaban, V. I. Popa Study of the behaviour of composite based on PE / wood in the biodegradation process 197. V. I. Popa, T. Moraru Influence of the enzymatic treatments on cellulose fibers properties 198. V. I. Popa, A. Banu Study concerning correlation of pollutant emission with environmental

parameters in the case of pulp and paper manufacture The VIth National Symposium “Diversity of Organisms “ development - source

of biotechnological and social valorisations”, Bucharest (Romania), November 26-29, 1997

199.D. Cotzur, C. Marinescu, A. Pavel, I. I. Bara, V. I. Popa and C. I. Simionescu “In vitro” Beta Vulgaris L. var. Conditiva tumoral explants behaviour 200.C. Marinescu and V. I. Popa

Cellulasic enzymatic systems involved in vitro degradation of different cellulosic substrates

201.D. Gavrilescu, V. I. Popa and T. Moraru The influence of enzymatic treatments on the properties of pulp fibres Celuloza si Hirtie 46 (4) 40-45 (1997)

202.C.Vasile,M.M.Macoveanu,G.Cazacu and V.I.Popa

Natural polymer waste recovery Proceedings of Fifth Mediterranean School on Science and Technology of Advanced Polymers based Materials,Capri (Naples) Oct.4-9,1997,Eds.E.Martuscelli,P.Musto and G.Ragosta,p.185-209

203.L.Dumitrescu, V.I.Popa, V.Petrovici,and G.Baciu Wood preservation agents

Bulletin of the Transilvania University of Brasov,vol.4(39)-New Series, Series B,69-72 (1997)

204.D.Gavrilescu,V.I.Popa,P.P.Obrocea,N.Anghel and T.Moraru Softwood kraft pulp bleaching oportunities with a low charge of chlorine dioxide Celuloza si Hirtie , 47(1) 32-36 (1998) 205.V.I.Popa and G.Cazacu Nitric delignification kinetics of oak lignocellulose in acetic acid medium Celuloza si Hirtie ,47(2),23-31 (1998) 206.A.G.Banu and V.I.Popa Systems of identification and analysis of gaseous pollutants 5th Symposium on Pulp and Paper organized by Somes Dej ,June,3-5,1998

First International Symposium of Packagings and Paper Convertings,Braila,June,17-19,1998 207.V.I.Popa and T.Moraru Biodegradability – benefit or deficiency for pulp based packagings 208.V.I.Popa,E.Bobu and T.Moraru Effects of enzymatic treatments on papermaking potential of OCC recycled fibres 209.V.I.Popa, R.Bodarlau, V.Dulman, M.Popa and C.Cotofana

Influence of the thermopower station ash upon some processes of biosynthesis in wheat plants(Triticum aestivum L.)

Cellulose Chemistry and Technology,32 (3-4),211-223 (1998)

7th International Conference on Biotechnology in the Pulp and Paper Industry, June 16-19,1998,Vancouver,Canada

210.E.Bobu,T.Moraru and V.I.Popa Papermaking potential improvement of secondary fibers by enzyme treatment Proceedings Part 3 (of 3) June 16-19,1998,C 143-C146

211.I.Spiridon,D.Stewart and V.I.Popa The effect of xylanase treatments on straw pulp bleaching Proceedings Part 3 (of 3) June 16-19,1998,C53-C56 212.V.I.Popa and C.Teaca The influence of chlorolignin products on weheat plants (Triticum aestivum L) growth Proceedings Part 3 (of 3) June 16-19,1998 C231-C233 213.V.I.Popa and C.Marinescu Enzymatic systems used in hydrolysis of cellulosic substrates 214.V.I.Popa,C.Beleca, C.Agache and M. Popa Contributions to the study of polyphenolic compounds extracted from wood bark Industria lemnului,49(1-2), 32-35 (1998)

Conference on Chemical Technology of Wood, Pulp and Paper ,Bratislava,Slovakia,June,23-25,1998

215.C.I.Simionescu,M.Popa,C.A.Teaca, R.Bodarlau, I.Spiridon,N.Anghel,C.Cotofana and V.I.Popa

The influence of pedoclimatic conditions on the chemical composition of main woody species from Romania

Proceedings of Conference, p.34-39,1998,ISBN 80-227-1074-1 216.I.Spiridon and V.I.Popa Lignin-carbohydrates links in enzymatic hydrolysis Proceedings of Conference, p.200-204,1998,ISBN 80-227-1074-1 217. I.G.Breaban,N.Tudorache,M.Rusu and V.I.Popa Behaviour of wood-plastic composites in natural conditions of biodegradation

5thInternational Scientific Workshop on Biodegradable Plastics and Polymers,Stockholm,Sweden,June,9-13,1998 (Abstract book,p.175,presented by I.G.Breaban)

218.G.Cazacu,I.Neamtu and V.I.Popa Aspects regarding nitric acid pulping of the furfural lignocellulosics Fifth European Workshop of Lignocellulosics and Pulp,August 30-Sept.2,1998,Portugal,Univ. of Aveiro,Proceedings, p.455-458,ISBN 972-8021-66-6

219.E.Bobu,V.I.Popa and T.Moraru The controll of colloidal dissolved material in papermaking systems with high.levels of secondary fibers 13thPTS Symposium .J.Weigel and H.-G.Volkel , (eds.)Munich Papiertechnische stiftung,p.15-, 15.10 1998,PTS Symposium PTS-SY 02/98,ISSN 0946-0101 (paper presented by E.Bobu)

220.C.I.Simionescu,M.Popa,R.Bodarlau,C.A.Teaca,I.Spiridon,C.Cotofana,N.Anghel and V.I.Popa Correlations between chemical compositions of wood species and environment Transeco’98,Environment and Transborder Cooperation,Suceava,Oct.1998,Proceedings,p.172- 179,ISBN 973-0-00788-8

The 5thMeeting of Pulp and Paper Industry of Balkan Countries,Mamaia,Romania,Oct.,7-

9,1998 221.I.Spiridon.V.I.Popa and E.Bobu

The influence of chemical and biochemical treatments on the obtaining of wheat straw high yield pulps

222. G.Cazacu, M.C.Pascu,N.Porfire,C.Vasile and V.I.Popa Polyolefins/cellulose biodegradable blends 223.V.I.Popa and T.Moraru Paper recycling and biodegradability 224.I.Spiridon and V.I.Popa Contributions to the study of enzymatic transformation of high – yield pulps Buletinul Institutului Politehnic Iasi Tom XLIV(XLVIII),Fasc.1-2,1998,Sectia II,Chimie si Inginerie Chimica,p.115-122. 225.V.I.Popa ,M.Popa,R.Bodaralau,C.Beleca and C.Cotofana Influence of the thermopower station ash upon growing of wheat plants (Triticum aestivum L.) Buletinul Institutului Politehnic Iasi Tomul XLIV(XLVIII),Fasc.3-4,1998,Sectia II,Chimie si Inginerie Chimica,p. 119-123. 226.V.I.Popa,N.Anghel,M.Popa and D.Cotzur On the biological properties of lignin products and polyphenols Proceedings of the Annual Meeting and Fourth International Forum of ILI,Oct.22-23,1998,Lausanne,Switzerland 227.C.Vasile, M.M.Macoveanu,V.I.Popa.M.C.Pascu and G.Cazacu Lignin and Environment

Roumaninan Chemical Quaterly Reviews, 6(2),85-111 (1998) 1999 228.V.Dulman, M Taralunga, V. I. Popa, and R..Bahaceanu Studies on the retention of Zn(II) ions from ammoniacal solutions by spruce wood bark. Cellulose Chemistry and Technology, 33(3-4),241-247 (1999) 229.V. I. Popa, T.Moraru and E. Bobu Study of pulp fiber composition changes during mixed (mechanical-enzymatic) processing Celuloza si Hirtie , 48(1), 19-27 (1999) 230.C.Marinescu and V. I. Popa

Structure-biodegradability relationship for cellulosic substrates subjected to enzymatic hydrolysis Buletinul Institutului Politehnic Iasi, Tom XLV(IL),Fasc.1-2,75-84 (1999)

231.V. I. Popa,E. Bobu and I. Spiridon Modification of cellulosic fibers by introduction of enzyme treatment in the processing of wheat straw as a high yield pulp

COST Action E 11:Characterization methods for fibers and paper,MC,WG – Fiber and WG Paper Meetings,Braila,Romania,May 5-7,1999

232.C.A. Teaca, R.Bodarlau, M.Popa, I. Spiridon, N. Anghel, C. Cotofana and V.I.Popa Chemical composition of some woody species as an indicator of environmental pollution Transeco ’99,Suceava June,3-5, 1999,Proceedings,p.44-54 233.M. Popa, R. Bodarlau,C. A. Teaca and V.I.Popa Forest ecosystems and environmental pollution Transeco’99,Suceava, June, 3-5,1999,Proceedings,p.136-145 234. A. Banu and V. I. Popa Aspects concerning the toxicity of dioxins and furans Transeco’99,Suceava, June, 3-5,1999 235.I.G.Breaban,V.I.Popa and C. Secu Biodegradable composite materials – a solution for the future Transeco’99 Suceava, June 3-5, 1999 236.C. Marinescu, D. Cotzur, I. I. Bara, V. I. Popa and C.I. Simionescu

Biochemical evaluation of tomato plants infected by Agtrobacterium tumefaciens, in vivo and in vitro

Simpozionul Asociatiei Romane de Culturi si Tesuturi vegetale,Constanta,June,10-12,1999 237. D.Cotzur, C. Marinescu, I. I. Bara, V.I. Popa and C. I. Simionescu Studies concerning the influence of the plant growth bioregulators on tomato infected with Agrobacter tumefaciens Simpozionul Asociatiei Romane de Culturi si Tesuturi vegetale,Constanta,June,10-12,1999 238. I. Spiridon, E. Bobu and V. I. Popa The influence of chemical and biochemical treatments on the papermaking properties of wheat straw pulps Proceedings of the 10th International Symposium on Wood and Pulping Chemistry,Yokohama,Japan, June 7-10,1999,p.262-265 239.E.Bobu, V. I. Popa and T. Moraru Control of colloidal dissolved materials in papermaking systems with high content of secondary fibers Wochenblatt fur Papierfabrikation,20,1334-1341 (1999)

240. V.Petrovici, D.Mihai and V. I. Popa Aspects and tendencies in the using of technical lignosulfonates in adhesives for wood industry Proceedings of XIVth Symposium Pokroku vo vyrohe a poziti lepidiel v drevopriemysle (Adhesives in Woodworking Industry) Vinne, Czeh Republic,Sept.,8-10,1999

241.I.G.Breaban, V. I. Popa and L. Ciovica Behaviour of some modified cellulosics in the enzymatic degradation Celuloza si Hirtie , 48(3),15-23 (1999) 242.V. I. Popa, M. Popa, R.Bodarlau, C. Cotofana, C. A. Teaca and P. Vidrascu Influence of the thermopower station ash on wheat plants development and chemical composition Buletinul Institutului Politehnic Iasi, Tom XLV(IL),Fasc.3-4, 79-86 (1999) 243.R.Bodarlau, C. A. Teaca, M. Popa, V. I. Popa, C. Stanciu and C. Talasman Vegetal species answer at the environmental action

Proceedings of the Symposium ‘’Environment and Industry”,Bucharest,Sept.23 - 25,1999,p.246-253

Papers presented at Twelfth International Symposium on Cellulose Chemistry and Technology,Iasi,Sept.21 – 23,1999

244.C. Marinescu, V. I. Popa and D. Tampu Structural modification registered as following enzymatic treatments of cellulose Proceedings, p.20-23,ISBN 973-9362-38-9 245.V. I. Popa and I. Spiridon Application of biotechnological processes in the pulp and paper industry (lecture) Proceedings, p.139-142 246. I.Spiridon, D. Stewart and V. I. Popa

Upon structural modifications of seed fibers of Asclepias syriaca determined by chemical and enzymatical treatments

Proceedings, p.147-150 247.R.Bodarlau, M. Popa, C. A. Teaca, and V. I. Popa Biosynthesis of wheat plant chemical components in the presence of

thermopower station ash Proceedings, 181-186. 248.C. A. Teaca, N. Anghel and V. I. Popa Study of the interaction between chitosan and some residual products from pulp

and paper industry Proceedings, 187-191 249.D.Cotzur, C. Marinescu and V. I. Popa The impact of some bioregulator substances upon neoplasic processes at

cultivated plant infected with Agrobacterium tumefaciens Proceedings, p.198-201 250.I.G.Breaban, V. I. Popa and L. Ciovica Thermal behaviour of chemical modified wood flour during biodegradation

process Proceedings, p.239-242 251.V. Negreanu, V. I. Popa and E. Bobu Possibilities of evaluation and control of the microorganisms in the paper

manufacture Proceedings, p.258-259 252.D. Gavrilescu, C. Beleca, V. I. Popa and N. Anghel

Softwood kraft pulp bleaching in the presence of sodium nitrate/nitrite.I.Factors affecting the process

Cellulose Chemistry and Technology, 33(5-6), 473-482 (1999)

Papers presented at the Academy Days, Iasi, Oct.,7-9, 1999

253.V. I. Popa and N. Anghel The influence of polyphenolic compounds on the biosynthesis of enzyme complexes involved in plant growth 254.R.Bodarlau,,M. Popa, C. A. Teaca, C. Cotofana and V. I. Popa The influence of pollutants on the biosynthesis processes in the wheat plants. I –

The influence of the thermopower ash 255.A. Andriescu and V. I. Popa Three dimensions structures with possible applications in the mimetic catalysis 256.C. Marinescu, V. I. Popa and C. I. Simionescu Cellulases and microbial producing by using two fungal strains in the different conditions of biosynthesis and biodegradation 257.C. Marinescu, V. I. Popa and C. I. Simionescu Microbial transformation of cellulose by using woody tissue-spruce bark mixture as inducer of cellulase enzymes 258. M. D. Suflet, G. Aldea, V. I. Popa and F. Popescu New modifications of cellulose with phosphorous containing compounds 259.C. A. Teaca, M. Popa, R. Bodarlau and V. I. Popa

The influence of pollutants on the biosynthesis processes in the wheat plants. II –The influence of chlorinated lignins

260.N. Anghel, D. Cotzur, C. Marinescu and V. I. Popa The effects of some lignin products on cultivated plants 261.C. Agache, V. I. Popa and V. Petrovici Aspects concerning the obtainment of some polymers based on lignin and their application

Proceedings of the International Conference on Materials Science and Engineering,Brasov,February, 3-5,1999,Vol.IV-Nonferous Materials,Environment Protection,p.278-283

262.V.I.Popa and T.Moraru Paper recycling and biodegradability Tseluloza i Hartia (Bulgaria) 29 (1), 3-4 (1999)

2000

263.V.I.Popa Systems for quality assurance in the training of students International Workshop:Procedures for Quality Assurance in the Higher Education in Romania,Iasi,February 11-12,2000,published in Vol. II,p.91-93,Ed.Economica,Edits.C.Rusu and M.Gafitanu,ISBN 973-590-342-3 264.C.Marinescu,D.Cotzur and V.I.Popa The variability of some quantitative parameters for Lycopersicon esculentum Mill. infected with Agrobacterium tumefaciens and subjected to polyphenols treatment. Buletinul Institutului Politehnic din Iasi,Tomul XLVI(L),Fasc.1-2,111-118 (2000) 265.V.I.Popa and C.Irimia Professor Cristofor I.Simionescu on his 80th birth anniversary Buletinul Institutului Politehnic Iasi, Tomul XLVI(L),Fasc.1-2, 7-9 (2000)

266.C.Marinescu and V.I.Popa On the biosynthesis and characterization of cellulase enzymes. II.Cellulase production enhancement in different biosynthesis conditions Cellulose Chemistry and Technology, 34 (1-2), 35-49 (2000)

267.V.I.Popa , Biomass as a renewable resource of chemicals and energy, Poster presentation, World Sustainable Energy Day, 9-10 March in Wels,Austria on CD-Rom on the Energy Globe Award 2000

6th International Symposium organized by “Somes” Dej,May 9-10, 2000 268.V.I.Popa,C.A.Teaca, and N.Anghel On the characterization of some effluents from pulp bleaching 269.A.Banu and V.I.Popa Ecological implications of conventional pulp bleaching.Formation of dioxins and furans 270.I.Spiridon and V.I.Popa Application of microorganisms and enzymes in the pulp and paper industry Cellulose Chemistry and Technology,34 (3-4),275-285 (2000) 271.V.I.Popa Organization and efficiency of research activity Lecture presented at “Petru Poni” Institute of Macromolecular Chemistry,May,25,2000

75 Years University Forestry Education in Bulgaria, Sofia,June 15-16.20 272.V.I.Popa,M.Popa.C.A.Teaca and R. Bodarlau Forestry ecosystems and environmental pollution Proceedings, p.439-446,2000,ISBN 954-8783-28-2 273.V.I.Popa, M.Popa,R. Bodarlau,C.A.Teaca, N.Anghel and C.Cotofana Characterization of some woody species from Romania

Proceedings,p.359-366,2000,ISBN 954-8783-28-2

Third International Symposium “High Performance Process and Equipment for the Pulp and Paper Industry”, Braila,May 30-June 1,2000

274.C.Marinescu and V.I.Popa Microbial treatment of lignocellulosics wastes using Phanerochaete

chrysosporium strains in order to obtain protein enriched materials Proceedings, p.83-86 275.V.I.Popa and D.Ciolacu Studies on the relationships between structure and cellulose reactivity.1.Physical

methods Proceedings, p.315-321 276.N.Anghel, C.A.Teaca and V.I.Popa The chitosan – perspectives for use in the waste waters treatments Proceedings, p.323-332 277.V.Negreanu,V.Negreanu, V.I.Popa and R.Pasa Researches in the field of microbiological control in the paper industry Proceedings, p.379-384 278.M.I.Popa, N.Aelenei,V.I.Popa and D.Andrei Study of the interactions between polyphenolic compounds and chitosan Reactive & Functional Polymers, 45,35-43 (2000) Sixth European Workshop on Lignocellulosics and Pulp,Bordeaux,September 3-

6,2000 279.C.Marinescu and V.I.Popa

On the reactivity of cellulosics concerning their behaviour in enzymatic hydrolysis

Proceedings,445-448 280.V.I.Popa, M.Popa,C.A.Teaca, R.Bodarlau,N.Anghel and C.Cotofana Forest’s answer to environmental pollution Proceedings,531-534 281.I.Spiridon and V.I.Popa Use of enzymes in deinking of office waste paper Proceedings, 603-606 282.I.Spiridon, V.I.Popa, C.Talasman and C.Stanciu Obtaining of high yield pulp from wheat straw by non conventional processes Proceedings, 607-610 283.I.Tudose and V.I.Popa Plants regulators from stems of Vitis vinifera Proceedings, 633-636 284.V.I.Popa, I.Tudose and N.Anghel Influence of polyphenols and lignin products on the biosynthesis processes Proceedings of The International Lignin Institute Annual Meeting and Fifth

International Forum, Bordeaux,France,Sept.7,2000 285.C.Vasile, M.Cazana,M.Dorobant,R.S.Antonie,V.Chiriac and V.I.Popa

Some aspects concerning plastics industry,waste accumulation and management in Romania Paper presented at II Konferencja Naukova,Recykling tworzyw sztucznych R’2000,Wroclaw, Poland, Sept.,19-22, Programm CEEPUS,Proceedings,p.51-56,ISBN 83-7085-503-2

286.V.I.Popa and M.Gavrilescu Achievements and perspectives in the scientific research at faculty of Industrial Chemistry from Jassy, Lecture presented at XXVIth National Symposium of Chemistry Oct.4-6,Valcea Romania

287.D.M.Suflet,G.C.Chitanu, O.Petreus and V.I.Popa Polysaccharides derivatives with ionic groups.1.Analysis and characterisation of phosphorylated cellulose, paper presented at XXVIth National Symposium of Chemistry,Oct.4-6,Valcea Romania

Papers presented at the Academy Days, Jassy, Oct.5-7,2000 288.D.M.Suflet,G.C.Chitanu,L.Rosescu,O.Petreus and V.I.Popa Synthesis and characterisation of some polyelectrolites with phosphoric groups

based on cellulose 289.D.Cotzur and V.I.Popa Cytogenetic effects of the treatments with polyphenols on Licopersicum

esculentum Mill 290.L.Olaru, V.I.Popa and N.Olaru Biodegradability of cellulose derivatives: the effect of substituent nature and

chemical modification degree 291.L.Olaru and V.I.Popa Aspects concerning the mechanism of enzymatic hydrolysis of water soluble

cellulose derivatives 292.M.Popa, R.Bodarlau and V.I.Popa Physiological and biochemical aspects in the development of some plants

cultivated on polluted media 293.C.A.Teaca and V.I.Popa

The vegetal systems – bioindicators of pollution process of the environment 294.M.Popa, C.Cotofana, M.Dumitru and V.I.Popa The influence of lignin derivatives on the bioremediation process.1.The influence

of ammonium lignosulfonate on plant development on arid soil 295.A.Andriescu and V.I.Popa Degradation reactions of cellulose derivatives under the action of new hydrolytic

and oxidative systems 296.V.I.Popa and R.Bodarlau The influence of thermopower ash on biosynthesis processes from different

vegetal species 297.M.Popa,R.Bodarlau C.A.Teaca,N.Anghel, C.Cotofana and V.I.Popa Study of chemical composition variation in function of highness and annual rings

of woody species 298.V.I.Popa, M.Popa, R.Bodarlau and C.A.Teaca Chemical potential of woody forestry species and its significance for a sustainable

development Lecture presented at The 7th Meeting of Pulp and Paper Industry of Balkan

Countries, Novi-Sad, Yugoslavia, Nov.8-10, 2000 299.C.Agache, V.I.Popa and V.Petrovici New aspects concerning the utilisation of lignin derivatives in the adhesive

systems used in wood industry,Proceedings of The National Conference of Wood

Industry,Brasov,Nov.17-18, 2000, p.261-266,ISBN 973-9474-91-8 300.V.I.Popa Higher education in the chemical engeenering in the market economy conditions Lecture presented at the International Conference on Organization Culture and Technological Change , Jassy , Dec.9, 2000 301.V.I.Popa,M.Popa, R.Bodarlau and C.A.Teaca Biosynthesis of vegetal compounds in the presence of pollutants Revue Roumaine de Chimie , 45 (7-8),725-729 (2000) 302.V.Dulman,S.Cucu-Man,V.I.Popa and R.Muresan Adsorption properties of beech wood sawdust related to some textile dyes Anal.St.Univ.”Al.I.Cuza”, Seria Chimie,tom VIII, No.2, 245-252 (2000) 303.C.A.Teaca and V.I.Popa

Studies on the behaviour of some individual biological systems under chlorolignin products action Buletinul Institutului Politehnic Iasi, Tom XLVI(L),Fasc.3-4, 129-136 (2000)

2001

304.C.Agache, V.I.Popa and V.Petrovici Ab initio study of reaction between urea and formaldehyde in alkaline medium Proceeding of International Conference on Materials Science and

Engineering,Bramat,Brasov March,1-2,2001,ISBN: 973-8124-15-8/973-8124-19-0, p.344-349 305.C.A.Teaca, R.Bodarlau and V.I.Popa Chemical potential of forestry vegetation and its influence in sustainable

development Celuloza si Hartie, 50, 1,20-27 (2001)

306.C.A.Teaca, R.Bodarlau and V.I.Popa Evolution of chemical composition during vegetative development in the environmental conditions TRANSECO '01 Suceava, June,7-8,2001,Proceedings,2002,p.96-100,ISBN 973-0-00788-8 307.R.Bodarlau, C.A.Teaca and V.I.Popa Possibilities to decrease the pollution degree by complex processing of by-products TRANSECO '01 Suceava, June, 7-8, 2001,Proceedings,2002,p49-53,ISBN 973-0-00788-8 308.V.I.Popa and A. Banu Remediation of soils affected by industrial activities TRANSECO '01 Suceava,June,7-8,2001 309.V.I.Popa and M.Ungureanu Possibilities of implementing lignin microbiological and enzymatic degradation Celuloza si Hartie ,50,2,3-15 (2001) 310.P.P.Obrocea,V.I.Popa and P.Obrocea Kraft delignification in the presence of additives with synergetic action.I.Polysulphide and methanol action Celuloza si Hartie , 50,2, 45-50 (2001) 311.C. Cotofana, M. Dumitru, C.N.Cascaval and V.I.Popa Influence of the ligninic products on the soil bioremediation 12th Romanian International Conference on Chemistry and Chemical Engineering RICCCE 12,Bucharest,Romania Sept,13-15,2001, Proceedings, pp.386-391,ISBN 973-652-382-9 312.D.Ciolacu, G.Cazacu and V.I.Popa Thermal behaviour of cellulose derivatives 12th Romanian International Conference on Chemistry and Chemical Engineering RICCCE 12,Bucharest,Romania,Sept.13-15,2001 313.C.Cotofana,V.I.Popa and C.N.Cascaval

Organic ferilizers based on lignin Paper presented at The 2nd National Conference "New Research Trends in Material Science" ARM-2, Constanta,Sept.24-26,2001,p.140 Papers presented at The 8-th Meeting of Pulp and paper Industry of Balkan Countries,Albena Bulgaria, Oct.,3-5,2001 314.V.I.Popa,C.A.Teaca and R.Bodarlau Pulp and paper industry-perspectives for a sustainable development,p.1 315.M.Dumitru, I.Obreja and V.I.Popa Fungal degradation of lignin, p.4 316..D.M.Suflet, L.Olaru, V.I.Popa

Cellulose derivatives with charged groups.4.Synthesis and biodegradation behaviour,p.9

Papers presented at Academy Days, Iasi, Oct.4-6, 2001

317.C.Cotofana, M.Dumitru, I.Obreja and V.I.Popa Modification of the lignin products by the influence of rhizosfere

318.C.Cotofana and V.I.Popa Organic fertilizers based on lignin 319.R.Bodarlau, C.A.Teaca and V.I.Popa

The influence of cultivation media containing pollutants on biosynthesis processes from different biological systems

320.L.Olaru, V.I.Popa, A.Taranu and N.Olaru Aspects concerning biodegradability of cellulose acetates with a partial

substitution 321.L.Olaru, V.I.Popa and N.Olaru Kinetic study of enzymatic hydrolysis of carboximethylcellulose in the initial

step 322.V. I.Popa, C.A.Teaca and R.Bodarlau

Pulp and paper industry - perspectives for a sustainable development, Proceedings of 2nd Conference on the Management of Technological Changes,Iasi - Oct.25-26,2001,Edit.Costache Rusu,Editura Economica,Bucuresti, p.137-142 ISBN 973-590-580-9

323.P.P.Obrocea,V.I.Popa, Kraft delignification in the presence of additives with synergistic action.II Anthraquinone and methanol action Celuloza si Hirtie , 50(3),9-12(2001) 324.V.I.Popa,M.Popa,R.Bodarlau and C.A.Teaca Chemical potential of some woody species and its importance for a sustainable development Balkan Pulp and Paper News (BPP news) 2 (4),23-26 (2001) 325.V.I.Popa,M.Dumitru and I.Obreja Possibilities of fungi application involved in lignin degradation and their enzymatic systems Celuloza si Hirtie ,50 (4),28-37 (2001) 326.P.P.Obrocea,V.I.Popa and P.Obrocea Kraft delignification with synergetic additives.III.Impact of polysulphides and anthraquinone Celuloza si Hirtie , 50(4),38-42 (2001) 327.C.Agache and V.I.Popa Biotechnology in wood industry.Forest tree genetic engineering Proceedings of 2nd International Conference.Wood Science and Engineering in the Third Millenium,Brasov,November,16-17,2001,,p.149-156

2002

328.R.Bodarlau,C.A.Teaca and V.I.Popa Considerations regarding sustainable devlopment in the pulp and paper industry Celuloza si Hartie ,51(1),34-38 (2002) 329.V.I.Popa Research activity at faculty of Industrial chemistry of Technical University

“Gheorghe Asachi” Iasi,Paper presented at the Symposium Perspectives of Reaserch -Development in Romanian Chemistry,organized by Academy of Technical Science from Romania, Bucharest, June,20,2002 Curierul de Fizica, nr 46, p. 3-4, 2003 330.E.Bobu and V.I.Popa Increasing paper machine performance by integrating biochemical and chemical processes, Paper presented at 15th International Congress of Chemical and Process Engineering, August, 25- 29,2002,Praha Czech Republic -on CD-Rom 331.D.Ciolacu,V.I.Popa and S.Ciovica Factors governing dissolution of cellulose on aqueous NaOH Paper presented at Seventh European Workshop on Lignocellulosics and pulp, Turku/Abo, Finland, August,26-29,2002,Proceedings, p.153-156 332.R.Bodarlau,C.A.Teaca and V.I.Popa Utilization of vegetation for in situ bioremediation of conatminated soils Environmental Engineering and Management Journal 1(1), 67-78 ( 2002) ISSN:1582-9596 333.D.Suflet, G.C.Chitanu and V.I.Popa Synthesis and characterization of new polyelectrolytes based on phosphorylated polysaccharides 3rd International Conference of the Chemical Societies of South-Eastern European Countries on Chemistry in the New Millenium-an Endless Frontier,Bucharest, Sept.22-25,2002 334.V.I.Popa, R.Bodarlau and.C.A.Teaca Environmental pollution and its harmful impact on vegetal species Paper presented at First International Conference on Environmental Engineering and Management,September 26-28,Iasi, Romania Environmental Engineering and Management Journal 1(2), 197-203, (2002) 335.G.Constantinescu, G.Cazacu and V.I.Popa Modification of ligninocellulosics fibers with the aim to introduce them in composite materials Academy Days,Iasi,Oct.3-5,2002 336.R.Bodarlau,C.A.Teaca, V.I.Popa and P.Vidrascu Influence of thermopower ash on biochemical processes and potential growth of some vegetal species Academy Days,Iasi,Oct.3-5,2002 337.C.A.Teaca,R.Bodarlau and V.I.Popa Study of the individual effects of some pollutants on vegetation Academy Days,Iasi,Oct.3-5,2002 338.D.Ciolacu and V.I.Popa The solubility of cellulose in aqueous alkali solution 9th Meeting of Pulp and Paper Industry of the Balkan Countries,Balatonfured,Hungary, Oct.9-11,2002 339.D.Ciolacu and V.I.Popa Synthesis and characterization of xanthan-cellulose hydrogels 9th Meeting of Pulp and Paper Industry of the Balkan Countries,Baltonfured,Hungary, Oct.9-11,2002 340.D.Suflet, G.C.Chitanu and V.I.Popa

Synthesis,characterisation and application of phosphorylated polysaccharides Le Deuxieme Coloque Franco-Roumain de Chimie Appliquee,,Bacau,Roumanie, 10-12 Oct.,2002

Third Conference of facultry of Industrial Chemistry,Iasi,13-15 November,2002 341.V.I.Popa, V.M.Gorduza and M.Gavrilescu History of higher education in the chemical engineering in Iasi (plenary lecture) 342.V.I.Popa, R.Bodirlau, I.G.Breaban and C.A.Teaca Evolution of chemical composition of wood as a consequence of landfilling 343.C.Agache,V.I.Popa and V.Petrovici Study ab initio of condensation reaction of lignin with formaldehyde.Reactivity of mono lignol C6 – C3 in Lederer-Manasse reaction 344.V.Dulman, M.Ungureanu and V.I.Popa Possibilities of oxidative degradation of some lignins 345.M.Dumitru,V.I.Popa and I.Obreja Influence of some ligninic products on metabolic processes from plants 346.C.Agache,V.I.Popa and V.Petrovici Theoretical study of vibrational spectrum of guajacol by ab intio method 347.D.Ciolacu and V.I.Popa Obtaining ,characterization and behaviour at swelling of hydrogels based on xanthan-cellulose

3rd International Conference : Wood Science and Engineering in the Third Millenium, Brasov November, 20-22, 2002

348.L.Olaru, N.Olaru and V.I.Popa On the susceptibility of cellulose acetate to enzymatic attack Proceedings, p.223-228,ISBN 973-635-078-9 349.V.I.Popa, C.A.Teaca and R.Bodirlau Biotechnology in wood chemistry, products and processes Proceedings, p.241-245, ISBN 973-365-078-9 350. C.Agache,V.I.Popa and V.Petrovici Ab intio study of lignin methylolation.Reactivity of monolignols Proceedings, p.254-259, ISBN 973-365-078-9 351.C.Agache,V.I.Popa and V.Petrovici Theoretical study of bond dissociation energy in lignin model compounds.Ab intio calculations for beta-O-4, beta-5 ,beta-1, 4-O-5 units Proceedinngs, p.395-400, ISBN 973-365-078-9 352.C.A.Teaca and V.I.Popa Tree as bioindicators of environmental pollution Cellulose Chemistry and Technology, 36 (1-2), 181-189 (2002) 353.G.Constantinescu and V.I.Popa Possibilities to use lignocellulosics fibers in mixture with thermoplastics Celuloza si Hirtie , 51(4), 41-48 (2002) 354.V.I.Popa, C.Agache ,C.Beleca and M.Popa Polyphenols from spruce bark as plant growth regulator Crop Research, 24 (2), 398-406 (2002) 355.V.Dulman, S.Cucu-Man and V.I.Popa Sorption of some textile dyes by oak wood sawdust Cellulose Chemistry and Technology, 36 (5-6), 515-525 (2002) 356.V.Dulman, S. Cucu-Man and V.I.Popa

Sorption of some dyes by spruce wood bark Journal of Balkan Ecology, 5 (1), 94-101 (2002)

2003

357.C.Ciobanu, M.Ungureanau, D.Ungureanu, L.Ignat and V.I.Popa Synthesis of some lignin-polyhydroxyurethane blends Paper presented at Sixth International Forum on New Approaches to Lignin Promotion and Eurolignin Network,Jan. 22-23, Wageningen/The Netherlands 358.C.Agache, V.I. Popa and V.Petrovici On the mechanism and kinetic of lignin condensation reaction with formaldehyde in alkaline medium., Proceedings of International Conference on Materials Science and Engineering, Brasov,March,13-14,2003,vol IV, p.310-315 359.G.Constantinescu, V.I.Popa, N.Popa and N.Lazar Making possibilities of ecological composite materials based on lignocellulosics fibers Celuloza si Hirtie , 52 (1),29-34 (2003) 360.D.Ciolacu and V.I.Popa Study on pulp dissolving in sodium hydroxide solutions at low freezing temperature Celuloza si Hirtie , 52 (1), 35-41 (2003) 361. V.I.Popa

Problems of chemical engineering education in the faculty of Industrial chemistry from Iasi in the European context.Paper presented at Symposium “Confrontations and directions in the higher education in the chemistry and chemical engineering” organized by Academia de Stiinte Tehnice din Romania si Societatea de Chimie din Romania, May,9,2003

362. V.I.Popa Biotechnology and sustainability development in the pulp and paper industry,

Lecture presented at 8th International Symposium “News in the Pulp and Paper Industry”, May 29-30,2003, Dej, Romania

363. V.I.Popa Lignin in composite materials and agriculture.Presented at 3rd EUROLIGNIN Meeting, Policoro, Italy, June 5-6, 2003 364.I. Tudose, A.M.Popa and V.I.Popa

Separation from Vitis vinifera seeds of some polyphenolic compounds with antiradicalaire properties, their characterization and valorisation Paper presented at 6th Romanian International Symposium on cosmetics and flavor products, June,2-5, 2003, Iasi, Romania

365.D.Ciolacu, M.D.Suflet and V.I.Popa Study of the reactivity of cellulose allomorphs by esterification reactions Celuloza si Hartie , 52 (2),15-22 (2003) 366. D.Ciolacu and V.I.Popa Synthesis and characterization of xanthan - cellulose hydrogels Balkan Pulp and Paper News, 4 (9) 25-28 (2003) ISSN 1450-9482

13th Internatioinal Symposium on Cellulose Chemistry and Technology,Iasi, Sept.3-5,2003

367. V.I.Popa Complex processing of biomass: on the biological properties of polyphenols and lignin products

(Lecture) Proceedings, 1 ISSN:1582-9596

368. D.Ciolacu, H.Ritter and V.I.Popa Synthesis of new cellulose esters with adamantoyl groups Proceedings, 327 - 332 369.G.Constantinescu, V.I.Popa, N.Popa and N.Lazar Composites materials based on lignin Proceedings, 333 - 339 370.M.Dumitru, V.I.Popa and M.Totolin Interaction of lignin with cresole on the level of tilled soil Proceedings, 340 – 344 371. C.Ciobanu, M.Ungureanu, L.Ignat and V.I.Popa The influence of peroxidase on the behaviour of lignin-polyurethane films Proceedings, 345 372. G.Constantinescu, V.I.Popa, G.Cazacu and N.Anghel Modification of lignocellulosic materials by epoxydation and esterification reaction Proceedings, 346 – 351 373.M.Macoveanu, C.Teodosiu, M.Gavrilescu and V.I.Popa Non-conventional curriculum design for the formation of the chemical engineer Management of technological changes,Proceedings of the 3 rd International Conference on the management of technological changes, Chania,Greece,August 29-30, 2003 Editor Costache Rusu, vol.2, p.93-97 374.R.Bodirlau, I.Spiridon, C.A.Teaca and V.I.Popa Studies concerning strucuture of the main compounds from different woody species developed in the variable conditions of environment Academy Days , Iasi,Sept.25-27, 2003 375.C.Ciobanu, M.Ignat, E. Stoica and V.I.Popa

Oxydative-enzymatic degradation of poly (urethane-lactat) lignin Academy Days , Iasi,Sept.25-27, 2003 6eme Colloque Franco-Roumain sur les Polymers, Rouen France, 8-10 September, 2003 376.D.Ciolacu, V.I.Popa et O.Bedue Nouveaux hydrogels xanthane-cellulose (New hydrogels based on xanthane-cellulose) 377.M.E.Ignat, L.Ignat, C.Ciobanu et V.I.Popa Revalorisation des lignines a travers des systemes polymeres lignine-polyurethane (The use of lignins in the system of lignin-polyurethanes) 378.G.Cazacu,G.Constantinescu, O.Petreus et V.I.Popa Etude de la modification de polymeres naturels pour augmenter leur compatibilite avec polymers synthetic (Study concerning the modification of natural polymers with the aim to increase their compatibility with synthetic polymers) 379.M.E.Ignat, V.Dulman, G.Nemtoi, V.I.Popa et L.Ignat Etude comparative de l’oxydation de lignosulfonates d’ammonium (A comparative study concerning the oxydation of ammonium lignosulfonates) 380.E.Bobu,T.Moraru and V.I.Popa Papermaking potential improvement of secondary fibers by enzyme treatment

Cellulose Chemistry and Technology, 37 (3-4), 303-311 (2003)

381.G.Cazacu, C.M.Popescu, V.I.Popa, G.Singurel and C.Vasile FTIR Spectroscopy for lignin characterization Third Conference on Isotopic and Molecular Processes, Sept., 25-27,2003 Cluj-Napoca,Romania 382.M.I.Carcea, V. I.Popa and M.Lupu Factors increasing the educational performances during the first year of study at the university Proceedings of the 4th International Conference on Electromechanical and Power Systems Chisinau, Sept.26-27, 2003, vol.I, p.195-198, ISBN 9975-9704-9-4 10th Meeting of Pulp and Paper Industry of the Balkan (Southeast European Countries) Agia Triada, Thessaloniki 29th –31st October 2003, Greece 383.D.Ciolacu and V.I.Popa Considerations on the crosslinking of cellulose 384.D.Ciolacu and V.I.Popa Homogeneous crosslinking cellulose in NMMO solution 385.D.Ciolacu and V.I.Popa X-ray study on the dissolution of cellulose in alkaline solutions at low temperature 386.C.M.Popescu, V.I.Popa, G.Singurel, G.Cazacu and C. Vasile Thermo-oxidative behaviour of lignins Workshop on Fundamental and Applied Research in Physics,”Al.I.Cuza” University of Iasi Romania, Nov.1, 2003 387.M.Ungureanu, V.Dulman and V.I.Popa Decolorizing of pulping effluents by ammonium lignosulphonate oxidation Environmental Engineering and Management Journal, 2 (3), 205-215 (2003) 388.M.Dumitru, V.I.Popa, I.Obreja and.M.M.Campeanu The influence of some lignin products on the metabolic processes of plants Buletinul Institutului Politehnic din Iasi,Tomul XLIX (LIII), Fasc. 1-2, 2003, Ser.Chimie si Inginerie Chimica, p.109-118 389. V.I.Popa Lignin in crops cultivation Lecture presented at 4th EUROLIGNIN Meeting, Copenhagen, Danemark, Nov.13-14, 2003 390.D.Ciobotariu, M Badescu, M.Ciocoiu and V.I.Popa Renal modifications determined by oxidative stress and the protecting effect of natural polyphenols Revista Medico-Chirurgicala , 10 (No.3 Supliment), 30-33 (2003)