Polymers - 東京農工大学web.tuat.ac.jp/~nomalab/material/Polymers.pdfJapanese Science and...
Transcript of Polymers - 東京農工大学web.tuat.ac.jp/~nomalab/material/Polymers.pdfJapanese Science and...
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Japanese Science and Technology/ Materials Science 1
Polymers
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Japanese Science and Technology/ Materials Science 2
Polymers and Molecules (Monomers)
Ethylenechrolide: CH2=CHCl
Polyethylenechrolide: ・・-CH2-CCl2-CH2-・・Defined as –(CH2-CHCl)n-
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Practical Usage of Polymers
PlasticsFibersFilmsetc
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[Background]In 1944 TUAT was founded by the incorporation of two colleges: “Tokyo College of agriculture and Forestry” and “Tokyo Textile College”
→Domestic Center of Textile (Polymer) Science
Polymer Research History in TUAT
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Current Polymer Research in TUAT
Dept. Biotechnology and life SciencesDept. Applied ChemistryDept. Organic and Polymer Materials
ChemistryDept. Chemical EngineeringBASE…….
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Typical Fabrication of Polymers: Nylon
Hexadimethyleneamine (aq) + Sebasticdichrolide (CCl4)
Interfacial Polymerization
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Japanese Science and Technology/ Materials Science 7
Hollow Capsule with Microns
Fill Species
Coat Species
1. Micro Capsule(cf. Prof. Iso (F. Tech))
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Japanese Science and Technology/ Materials Science 8
Fabrication of Microcapsules
Example: Nylon Capsule
*Chloroform
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Japanese Science and Technology/ Materials Science 9
Application 1
Air Cleaning
TiO2 Coated Micro Capsule(Optocatalytic Effect and Absorption)
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Application 2
Aromatic
Controlled Diffusion of Aromatic Species(cf. Agricultural Chemicals)
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Application 3
Flame Retardant
Fill Flame Retardant Molecules
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2. Water Absorbing (Swelling) Polymer(cf. Emeritus Prof. Sato (F. Tech))
Before absorption 10sec
30sec 60sec
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Water Absorption Mechanism
Dissociation of Na+ ions by water molecules
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Fabrication of Water Absorbing Polymer
Vinyl Polymerization of Sodium Acrylate
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Practical Uses
DiapersArtificial SnowAgriculture: Polymer Coated Seeds, Soil Improvement…
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ApplicationOptical Fiber Reinforcement
(water ⇔ Fiber reaction: Degradation)
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3. Electric Conducting Polymer
(cf. Prof. Ohno (F. Tech) and Prof. Naoi (F. Tech))
PEO (Polyethyleneoxide)
PMEOAnd Many other ….
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ECD (Electrochromism Display)
BLUE
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Thin Film Battery
(Fujitsu)
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4. Piezoelectric Polymer
(cf. Prof. Watanabe (F. Tech.))
PVFD
Polypyrrole
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How to get Piezoelectricity
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Japanese Science and Technology/ Materials Science 22
Thin Speaker
Transparent Speaker
Magnetic Speaker
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Japanese Science and Technology/ Materials Science 23
Membrane Type Hydrophone
(Toray)