Sol-Gel - CHERIC · by Sol-Gel Method Dong-Il Lee, Sang-Hong Jang* and Ki-Chang Song † Department...

5
768 HWAHAK KONGHAK Vol. 41, No. 6, December, 2003, pp. 768-772 Sol-Gel - * 320-711 26 * 302-070 88-1 (2003 7 30 , 2003 9 6 ) Preparation of Hydrophilic Inorganic-Organic Hybrid Coating Solutions by Sol-Gel Method Dong-Il Lee, Sang-Hong Jang* and Ki-Chang Song Department of Chemical Engineering, Konyang University, 26, Nae-dong, Nonsan, Chungnam 320-711, Korea *Uri-Tech, 88-1, Pyungchon-dong, Seo-gu, Daejeon 302-070, Korea (Received 30 July 2003; accepted 6 September 2003) - Sol-Gel !"# $ %&. () *#+ ,-. (Ludox)/ 0 1 2$() APS(3-aminopropyl triethoxysilane) 3 45 60%&. ,7 89:6) APS *#+ ,-.; <= >?@A) (PET) / BB C D$ E F G H# &I (J CK LD D$6 MN &. OP Q) 0R/H(pH 2, 7) APS 5 45ST 60U V/ WX"# Y ST / N Z[&. \] ^ 0R /H(pH 9, 11) _‘Ta "# / V/ b] c de Z fg h03 i, j’ klB mno[&. Abstract - In order to improve the anti-fogging property of hydrophobic polymer films, inorganic-organic hybrid coating solutions with a good hydrophilic property were synthesized by the sol-gel method. The coating solutions were prepared by adding 3-aminopropyl triethoxysilane (APS) to a colloidal silica solution(Ludox). APS as a silane coupling agent forms strong bonds to the colloidal silica and surrounding polymer matrix (PET), and links two different materials together. Solutions pre- pared by the addition of APS at acidic and neutral conditions (pH 2, 7) resulted in gels which can not be used as coating solu- tions. On the other hand, those at basic conditions (pH 9, 11) resulted in coatings that were less prone to cracking and showed a good hydrophilic property. Key words: Aminopropyl Triethoxysilane, Hydrophilic, Sol-Gel Method, Inorganic-Organic, Silane Coupling Agent, Coating Solution, Silica 1. PMMA, PET PC ! "#$ % & ’( )$ *+,% -. / 0 123 45 67. $8 ! " # 9 :) ;< +=, :) >?9 +@ AB, CDE F G H IJKL M N= O 7. "P QR :)9 S@+D G T UVW$ -., 7. E 1 XYZ UV QR :) [ )N3 M\+ .]9 ^_ K‘+ UV[1] a QR Nb c : ) [ )N3 J de+@ f UV[2] g$ h.i,% 7. j UV k) QR :) [)N3 K‘+@ :)9 S@+ l $ UV ^Dm :) n%Jo [)N p K‘E %q, [)NE rUs +@ \t,D uv :)$ wxyz J{,J |+ } ~$ 7. a UV QR Nb / :) [) N3 J M de+ UV, de6 [)NE QR Ut :)$ , $ UV QR S [)N Ut$ :)$ w J{,J |7 ^~$ 7. To whom correspondence should be addressed. E-mail: [email protected]

Transcript of Sol-Gel - CHERIC · by Sol-Gel Method Dong-Il Lee, Sang-Hong Jang* and Ki-Chang Song † Department...

Page 1: Sol-Gel - CHERIC · by Sol-Gel Method Dong-Il Lee, Sang-Hong Jang* and Ki-Chang Song † Department of Chemical Engineering, Konyang University, 26, Nae …

HWAHAK KONGHAK Vol. 41, No. 6, December, 2003, pp. 768-772

Sol-Gel�� �� ��� �- �� � ��� ��

�������*��†

����� �����320-711 �� �� 26

*����302-070 �� �� ��� 88-1

(2003� 7� 30� ��, 2003� 9� 6� ��)

Preparation of Hydrophilic Inorganic-Organic Hybrid Coating Solutions by Sol-Gel Method

Dong-Il Lee, Sang-Hong Jang* and Ki-Chang Song†

Department of Chemical Engineering, Konyang University, 26, Nae-dong, Nonsan, Chungnam 320-711, Korea*Uri-Tech, 88-1, Pyungchon-dong, Seo-gu, Daejeon 302-070, Korea

(Received 30 July 2003; accepted 6 September 2003)

� �

��� ��� �� ��� ���� ��� ��� ���� ��� �-�� �� ��� � Sol-Gel!"# $

��%&. ��� ' �() *#�+ ,-. � (Ludox)/ �� 0�� 1�� 2$() APS(3-aminopropyl

triethoxysilane)3 45�� 60�%&. ,7 89:6) APS� *#�+ ,-.; <= >?@A) ��� ��(PET)/

BB C� D$� E��� F G H# &I (J� C�K LD�� D$6 MN� �&. O�P Q�) 0R/H(pH 2,

7) APS5 45ST 60U V�/� WX�"# � ' Y� ST ��� �� �/ �� N � Z[&. \] ^�� 0R

/H(pH 9, 11) _`Ta �� ��� "# ��� �� �/ ��� V�/� �� �� b]� c de� Z� fg

h03 ��i, j' klB� �� ��� ���� mno[&.

Abstract − In order to improve the anti-fogging property of hydrophobic polymer films, inorganic-organic hybrid coating

solutions with a good hydrophilic property were synthesized by the sol-gel method. The coating solutions were prepared byadding 3-aminopropyl triethoxysilane (APS) to a colloidal silica solution(Ludox). APS as a silane coupling agent forms strong

bonds to the colloidal silica and surrounding polymer matrix (PET), and links two different materials together. Solutions pre-

pared by the addition of APS at acidic and neutral conditions (pH 2, 7) resulted in gels which can not be used as coating solu-tions. On the other hand, those at basic conditions (pH 9, 11) resulted in coatings that were less prone to cracking and showed a

good hydrophilic property.

Key words: Aminopropyl Triethoxysilane, Hydrophilic, Sol-Gel Method, Inorganic-Organic, Silane Coupling Agent, CoatingSolution, Silica

1. � �

����� ��� �� � �� � � �� PMMA, PET� PC

�� ��� ���� �� �! "#$ �%�� &� '(��

��)$ *+,% -. / 0 123 45� 67. $8 �! "

#� ��9 :�)�� ;< +=�, :�) >?9 +@ AB,� �

CDE �F �� G H� IJKL M�� N= O � �7. "P �

�� QR :�)9 S@+D G� T� UVW$ -.,� �7. E

1 XY�Z UV��� ��� QR� �� :�) [� )N3

M\+� .]9 ^_ K`+� UV[1] a� ��� QR Nb c :

�) [� )N3 �J de+@ f� UV[2] g$ h.i,% �

7. j�� UV� k�) ��� QR� �� :�) [�)N3

K`+@ :�)9 S@+� l�� $ UV �� ^Dm� :�)�

n%�Jo [�)N� p�� K`E %q�, [�)NE rUs

�+@ \t,D u�v� :�)$ wxyz J{,J |+� }

~$ �7. a� ��� UV� ��� QR Nb / :�) [�)

N3 �J� M� de+� UV��, de6 [�)NE QR ��

�� Ut���� :�)$ �����, $ UV �� ��� QR�

�S�� [�)N� Ut$ �� :�)$ w� J{,J |�7�

^~$ �7.†To whom correspondence should be addressed.E-mail: [email protected]

768

Page 2: Sol-Gel - CHERIC · by Sol-Gel Method Dong-Il Lee, Sang-Hong Jang* and Ki-Chang Song † Department of Chemical Engineering, Konyang University, 26, Nae …

��� ��-�� �� � �� � 769

,

G� UVW� ^~9 �}+D G+@ � �� �� �D�kP�

Nb �� -.,� �� Sol-GelV9 $., �D-\D d) >? .

]9 ;�� k�) ��� QR �� >?, �i/� �� ��

� 1D :�)9 ���� QR9 ;�+�� �7. Sol-GelV� �

_K� �{ ��-$�3 j�F� -.+@ .] c �� E��

� �A� cBe �A9 =� D�) >?.], �{ 'ir �� �

�, D�)  �¡¢3 �N��� Nb+� UV$7[3-4]. Sol-GelV

� £¤ �D[ j�F \Dr9 ¥E+@ �A/���� �Dr

� \Dr� cm )¦9 §� �D-\D d)F3 ¨�� Nb© �

�7. $ �� �Dr� \Dr$ �� ^G� p�+� d)6 ªe

F3 «)M �� �Dr$ §� �¬­), ��) g� 1~� \

Dr$ §� \�), )«) g� 1~9 ­® §� ¯�° £)� r

<9 ±9 � �7[5-9]. � �� �� �DrZ ²�$� h�³ .

](Ludox) \D b)9 E´ h(µ¶·NZ APS(3-aminopropyl

triethoxysilane)3 ¥E+@ Sol-GelV �� �D-\D d) >?.

]9 Nb+¸7.

APS[H2N(CH2)3Si(OC2H5)3]� h(µ¶·N� �¹� 3;� ethoxy

º�D(OC2H5)� 7» �¹� amine º�D(NH2)� �),% �7. j

�� r �� E��� ,% �'D(-OH)� 6 ¼ h�³ ��� �

� �D< ��� -OHD� �k}e9 «)+½, a� ��Z amine

º�D� ��� QR ��� carbonylD, ¾k $c}e ¿� epoxyD

g� �A+@ ÀÁ+D %° �Dr� \Dr� }eÃ9 Ä#/Å

� Æ©9 �7. Fig. 1� h(µ¶·NZ APSE �DrZ h�³ ��

� \DrZ PET3 }e/Å� KÇK$7. APS c� ethoxyD� È

* r �� E��� ,% �'D� 6 � h�³ �� ��� -OH

D� �k}e9 «)�7. a� APSc� amineD� PET film ���

carbonylD (C=O)� �A+@ APS3 PET chainc �,� �7[10].

$8 D�� APSE M\6 �D-\D d) >? .]� DPZ PET Q

R�� ÀÁ)$ ÊË, >?Ì$ r �� �� \t,J Í�v� 1

D :�)9 ����� Î^67.

J�ÏJ h(µ¶·N� GPS(glycidoxypropyl trimethoxysilane),

MTES(methyltriethoxysilane), PTES(phenyltriethoxysilane) g9 -.+

@ �DrZ h�³� \DrZ ��� QR -$� ÀÁÃ9 Ä#/

ÅD G� T� ��W$ �Ð,% Ñ7[11-12]. ÒÓ� h(µ¶·N

� APS3 -.+@ h�³� ��� QR9 ÀÁ/Å�� +� ��

� =� �Ð6 ÔE Õ7. Ö�� � �� �� h(µ¶·N� APS

3 -.+@, $3 �DrZ h�³ ��� }e+@ �D-\D d) >

?.]9 Nb� � ��� QRZ PET(polyethylene terephthalate) G

×� >?(dip-coating)+@ :�) QR9 Nb+¸7. $ �Ø c

>? .]� pH�i� d) .] c� APS� ¥EÙ �iE Nb6

QR� :�) Ú �� Û �b� �� r) �i ÛÜ� ÝÄ9 Þ

ßXà7.

2. � �

2-1. ��

²�$� h�³�� Dupont-� #á� Ludox(LS)3 ØN Õ$ -

.+¸7. $ /â� 12 nm ãD� ��3 EJ½, 30 wt%� SiO2E r

�'6 «ä$7. a� h(µ¶·N�� Aldrich Chemical-� 3-aminopropyl

triethoxysilane[APS, H2N-(CH2)3-Si-(OC2H5)3]9 -.+¸7.

2-2. ����� �� � ��

È* Ludox� r9 1:1 cÙ�� de+�, Ò "å]9 30 min y

z ��+¸7. Ò � �A ¥E,� zØiN�� �ØÙ� HNO3

(Orichemical Industries, 60%)� NH4OH(Yakuri Pure Chemical, 28%)3

�� c ¥E+@ .]� pH3 æ+� ç�� bè� �, $ .]

�ØÙ� APS3 éZê� ¥E+@ 30oC� \J,� ëìb � 2/

m yz ��+¸7. Ò � OHP. polyethylene terephthalate(PET) Q

R(3 M)9 �� {K� � >?(dip-coating) /�, 80oC� \J

,� íbD � � 2 /m yz �i Ú íb3 /î >?. QR9

Nb+¸7. $ ï Nb.]� pH, APS ¥EÙ g� �A ��E Nb

6 QR� :�) Ú �� £) ÛÜ� ÝÄ9 b-+¸7. $#� N

b ðØ9 Fig. 2� ���ñ7.

2-3. �� � �� ��

>? Ì� :�) ØK3 �D G+@ contact angle goniometer(DSA10

Marktech)3 $.+@ rUs� Àòó9 ôØ+¸7. $ ï Cõ�3

-.+¸�½ öJ÷ ³ø�3 $.+@ -´�� ùÝ� :�) ØK3

���ñ7. DPZ ��� QR(PET) G >?6 >? Ì� ÀÁ #ä

3 XD G+@ QR ��� ۠�b3 �-j�"�(XL30SPEG,

Philips)9 -.+@ ºú+¸7. $ ï E{ jû� 15 kV$ñ�½ 3,000

ü� ýþ+@ Û �b3 ºú+¸7. a� ��j�"Û�(CM20,

Philips)9 $.+@ >?.] c h�³ ��� ­ÿ� ãD3 ÞßX

à7.

Fig. 1. An illustration of the structure of hydrolyzed APS when it cou-ples a PET film to a silica surface. Fig. 2. Flow chart for preparation of hybrid coating film.

HWAHAK KONGHAK Vol. 41, No. 6, December, 2003

Page 3: Sol-Gel - CHERIC · by Sol-Gel Method Dong-Il Lee, Sang-Hong Jang* and Ki-Chang Song † Department of Chemical Engineering, Konyang University, 26, Nae …

770 �����������

3. �� �

3-1. ���� pH� ��� ��� ��� ��

� �� �� �� :�) OHDE �P+@ :�)9 ����

h�³ ��3 DPZ PET QR G >?, íb+@ :� ��3 �

���� �7. ÒÓ� h�³ ��E DPZ k�)� PET QR� À

Á,J Í�v� $ h�³ ��3 PET QR G �ä ÀÁ/ÅD

G� éZê� h(µ¶·NZ APS3 -.+¸7. APSE ²�$� h

�³ "å](Ludox) ¥EO ï APS c� ethoxyD� r �� E�

�� 67. E��� 6 APSE .] c� h�³ �� G �Á,�

l� .]� pH ã� ��+� 67. Table 1 �� �ØÙ� R(APS/

silica <Ù��)ç9 EJ� @Ó pHbí � Nb6 >?.]� #ä

3 ÞßXà7. APSE ¥E,D j� ­� .]� #ä�(R=0) � #ä

3 \J+¸��, pHE ')� c)Z bí(pH 2, 7) �� APSE ¥E

,� _m .]$ �$ ,ñ�, �� pHE D) bí(pH 9, 11) ��

.]� �$ ,ñ7. APS� D) bí � zØi 67� l9 �

� �7. $l� ')� c)Z bí � APSE ¥E,� .]$ �$

,%� >? .]9 Nb© � Õ� �� D) bí �� >? .]

$ ±%�9 �Û�7. a� ­� pHbí � �Ù� APS(R=0.2)E ¥

EO �� � >?.]� _m��� �$ �9 � � �7. $ þ�

�� "P 7ÿ� ��DD3 $.� Ò æZ9 � c �7.

Fig. 3 �� D) bí � �ØÙ� APS(R=0.15)3 ¥E/î N

b6 >? QR� r þ� Àòó �i3 ��� Ò!$7. Ò! �

X�$ APS� pHE D) bí(pH 9, 11) �� óó �� Àòó(7o,

6o)9 X@�% :�)9 ���9 � � �7.

Fig. 4� .]� pHE D) bí �(pH 9, 11) �ØÙ� APS(R=0.15)

E ¥E,% Nb6 >? QR ��� Û �b3 3,000ü� ü�� º

ú� SEM-´$7. $ Ò! � � � ��$ D) bí�� Nb6

QR� Û �b� p�$ Õ� ��� Û �b3 X̧ 7. $#� }��

Park g� ��[11] � h(µ¶·NZ GPS(glycidoxypropyl trimethoxysilane)

3 -.� �� � ') bí � Nb6 >? QR� r þ� ��

Àòó9 X$½ ��$ =� p�$ Õ� ��� Û �b3 X$�

��, D) b� Nb6 >? .]��S� Nb6 >?QR�

r þ� Àòó$ �Ë :�)$ ÊJ Í�½ p�$ �� Û �b

3 X$� "#�� �þ� }�$7. GPS[� �� � Song g[13]

�+� �ØÙ� GPSE ²�$� h�³ "å] ¥EO ï .]�

� E��� 6 GPS� ²�$� h�³� �� �Á,=�, h�

³ �� �Á,J Í� �DW5� Be, )1+@ � #ä� �P+

� ,�� $ ®;� øµ��� �� ���$½, .]� pH ã�

��+� 67. .]� pHE ')� �� � E��� 6 GPSE

h�³ ���� �Á�A$ ��,½, Ò }� :�)9 §� h�³

��E PETQR �� ��� >?,% >? QR� ��� :�)9

���½, p�$ Õ� ��� Û �b3 X$� 67. �� .]� pH

E D)Z �� � E��� 6 GPS� #�m� Be �A$ ��

,%, GPSE h�³� �� �Á,J Í�v� PET QR G h�

³ ��E � �Øi,J ÍË, >? QR� :�)$ ÊJ Í�½ p

�$ �� ۠�b3 X$� 67. � ��� APS[� �� �K

GPS� ���� .] � � E��� 6 APSE ²�$� h�³ G

�Á,=�, �Á Õ$ �DW5� Be, )1+@ � #ä� �P+

� ,�� $ �Ø� .]� pH ã� ���7� - 67. '),

c) bí �� APS5�� Be, )1$ ��,% .]� _Çm

�$ 67� !Ø,½, D)� �� � APS� h�³ �� �� G

� �Á$ ��67� - 67.

3-2. APS ���� ��� ��� ��� ��

� è �� �Ø pHbí(pH 11) + � APSM\Ù� �iE >?

QR� r) ÛÜ� ÝÄ9 ÞßXà7. Fig. 5� pH 11 bí + �

APS� ¥EÙ9 "�+@ Nb6 .]�� >? 6 PETQR� r

þ� Àòó �i3 Þß � Ò!$7. APSE j# ¥E,J Í=�(R=0),

ÛÙ� APSE ¥E ,ñ9 ��(R=0.05) � Ò! �� �$ óó �

� Àòó(18.3o, 19.7o)9 X¸�� APS3 �ØÙ �� +¸9 ��

(R=0.1, 0.15) � óó �� Àòó(7o, 6o)9 X¸7. $� QR� :�

)$ APS� ¥EÙ ã� ��M9 �Û�7.

Fig. 6� pH 11� �Ø� bí + � APS� ¥EÙ �i Ö� N

b6 QR��� Û �b3 3,000ü� ü�� ºú� SEM�� }�

$7. APSE j# ¥E,J Í� ��(R=0)� ��� kÙ ¥E6 �

� � (R=0.05) QR� Û �b� p�$ T$ �+¸Jo, APSE

�$Ù $# ¥E6 QR(R=0.10, 0.15)� Û �b� p�$ �,J

Í� Ü%� �b3 X@�� �7. $Ó� }�� .] � �� APS

� Æ©9 &�� �� l�� APSE ¥E,� QR G >?,% �

� ²�$� h�³ �� G �Á$ �%� DPZ PETQR� h�

³ �� -$� }e9 '�¤ ��v� íb Ú �i ðØ �� ]F

Fig. 4. SEM photomicrographs of the surfaces of coating films preparedwith APS(R=0.15) added at different pH; (a) pH 9 and (b) pH 11.

Fig. 3. Photographs of contact angles with water for coating films pre-pared with APS(R=0.15) added at different pH; (a) pH 9 and (b)pH 11.

Fig. 5. Photographs of contact angles with water of the coating filmsprepared with different amounts of APS at pH 11; (a) R=0, (b)R=0.05, (c) R=0.1 and (d) R=0.15.

Table 1. The state of coating solutions prepared from different conditions.R is the weight ratio of APS to silica.

R=0 R=0.05 R=0.1 R=0.15 R=0.2

pH2 Sol Gel Gel Gel GelpH7 Sol Gel Gel Gel GelpH9 Sol Sol Sol Sol GelpH11 Sol Sol Sol Sol Gel

���� �41� �6� 2003� 12�

Page 4: Sol-Gel - CHERIC · by Sol-Gel Method Dong-Il Lee, Sang-Hong Jang* and Ki-Chang Song † Department of Chemical Engineering, Konyang University, 26, Nae …

��� ��-�� �� � �� � 771

nt

.�� C� �� DZ,� ­ ºÃ �� QR ��� p� "#

9 UJ+� 67[11, 13].

Fig. 7� �Ø� pHbí(pH 11) � Nb6 >? .]� TEM-´�

� APSE ¥E,J Í� .](R=0) �� h�³ ��� ãD(12 nm)

X7� APSE ¥E6 .](R=0.15) �� h�³ ��� ãD(14 nm)

E ê µ´ l9 � � �7. $� D) bí � APSE ¥E6 �

� � APSE .] c� h�³ �� �� �Á,� l9 �Û�7.

Fig. 8� pH 11� bí � �ØÙ� APS(R=0.15)3 ¥E+@ Nb

6 �D-\D d) .]�� PETQR G >?� � >?Ì� ®�3

�ËXD G� >? ^�9 ôØ� SEM-´$7. >? ®�E þ(

430 nm� p�+½ ®)° *$ «),% �+9 � � �7. $� �

D-\D d) >? .]� 1~9 ���� l�� Sol-GelV �� D

�� �D 'ir >?]� >? ®�� 100-200 nm ØK� HË, �

µm >? ®�� �*9 Nb+D G��� �, -� �ª >?$ Q

.� ��, �D-\D d) >? .]� >? ®�� 1/ >? ®�E

430 nm ØK� ®)0 � µm ®�� �*9 ¨�� Nb© � �7�

l9 �Û�7.

4. � �

²�$� h�³ �� �� � h(µ¶·NZ APS� �Á "#9

$.+@ ¯�° �D-\D d) >? .]9 Sol-GelV �� e)+

¸7. Ò � >?.]9 DPZ PETQR G ×� >?(dip-coating)+

@ ±%´ >? QR� :�) Ú ��� Û �b3 b-+@ 7+�

�� }19 ±ñ7.

(1) ²�$� h�³ "å] APS3 ¥E/ ')� c)� bí

�� �$ ,% >? .]9 Nb© � Õñ�, D)� bí �� >

? .]$ �$ ,% >? .]9 Nb© � �ñ7. D) bí �

Nb6 >? QR� r þ� �� Àòó9(6-7o) X@ ��� :�

)9 X¸�, >?6 QR ��� Û �bK p�$ Õ� ��� Û 

�b3 X¸7.

(2) D) bí � (pH 11) >?6 QR� Àòó� APS� ÿ ã

� ��+¸7. APSE ¥E,J Í=� kÙ� ÿ$ ¥E,ñ9 ��

(R=0, 0.05) � r þ� �� Àòó9(18-20o) X¸�, APSE �Ø

Ù ¥E,ñ9 ��(R=0.1, 0.15) � r þ� �� Àòó9(6-7o) X

¸7. a� D) bí � APS� ¥EÙ �i Ö» QR� Û �

b3 ºú� }� APSE ¥E,J Í� �� � �� Û  p�$ �

+¸Jo, APSE ¥E6 QR� Û �b� p�$ �,J Í�

Ü%� �b3 X@�ñ7. $� APSE ¥E,� ²�$� h�³ �

� G �Á$ �%� DPZ PET QR� h�³ �� -$� }e9

'�¤ �29 �Û�7.

(3) TEM �� }� D) bí � ²�$� � APSE ¥E,�

APSE h�³ �� G �Á$ �%� h�³ ��� ãDE ê3 µ

�9 � � �ñ7.

$ 45� 20026K �789´:P^� Jæ �+@ ��,ñ;

�7(KRF-2002-002-D00057).

���

1. Lim, J. U., “Coating Method and the Equipment of Anti-fogging Age

Fig. 6. SEM photomicrographs of the surfaces of coating films preparedwith different amounts of APS at pH 11; (a) R=0, (b) R=0.05, (c)R=0.1 and (d) R=0.15.

Fig. 7. TEM photomicrographs of colloidal silica suspensions withoutAPS (R=0) and with APS (R=0.15).

Fig. 8. SEM photomicrograph of the cross section of coating film pre-pared from APS (R=0.15) added at pH 11.

HWAHAK KONGHAK Vol. 41, No. 6, December, 2003

Page 5: Sol-Gel - CHERIC · by Sol-Gel Method Dong-Il Lee, Sang-Hong Jang* and Ki-Chang Song † Department of Chemical Engineering, Konyang University, 26, Nae …

772 �����������

s-

nd

ly

ac-

of

-

per-

of

i-

for Agricultural Polymeric Film,” Korea Patent No. 25056(1995).

2. Lee, H. S., “Preparation Method of Functional Additives for Agri-

cultural Polymeric Film,” Korea Patent No. 65086(1998).

3. Brinker, J. C. and Scherer, G. W., Sol-Gel Science, The Physics and

Chemistry of Sol-Gel Processing, Academic Press(1990).

4. Dislich, H., “Sol-Gel 1984→2004(?),” J. Non-Crystal. Solids, 73,

599-602(1985).

5. Wojcik, A. B. and Klein, L. C., “Transparent Organic/Inorganic�Hybrid

Gels: A Classification Scheme,”Appl. Organometallic Chem., 11(2),

129-135(1997).

6. Wojcik, A. B. and Klein, L. C., “Transparent Inorganic/Organic Copoly-

mers by the Sol-Gel Process: Copolymers of Tetraethyl Orthosilicate (TEOS),

Vinyl Triethoxysilane (VTES) and (Meth) acrylate Monomers,” J. Sol-Gel

Sci. Tech., 4(1), 57-64(1995).

7. Saegusa,� T., “Organic/Inorganic Polymer Hybrid,”Macromolecular

Symposia, 98, 719-720(1995).

8. Mascia, L., “Polymide-Silica Hybrid Materials by Sol-Gel Proces

ing,” J. Mater. Sci. Lett., 13, 641-644(1994).

9. Schmidt, H., “New Type of Non-crystalline Solids between Inorganic a

Organic Materials,”J. Non-Crystal. Solid, 73, 681-691(1985).

10. Fadeev, A. Y. and McCarthy, T. J., “Surface Modification of Po

(Ethylene Terephthalate) to Prepare Surface with Silica-Like Re

tivity,” Langmuir, 14, 5586-5593(1998).

11. Park, J. K., Song, K. C., Kang, H. U. and Kim, S. H., “Preparation

Hydrophilic Coating Film Using GPS(Glycidoxypropyl Trimethox

ysilane),” HWAHAK KONGHAK, 40(6), 735-740(2002).

12. Lee, M. S. and Jo, N. J., “Abrasion-Resistance and Optical Pro

ties of Sol-Gel Derived Organic-Inorganic Hybrid Coatings,” J. Korean

Ind. Eng. Chem., 12(6), 643-648(2001).

13. Song, K. C., Park, J. K., Kang, H. U. and Kim, S. H., “Synthesis

Hydrophilic Coating Solution for Polymer Substrate Using Glyc

doxypropyl Trimethoxysilane,” J. Sol-Gel Sci. Tech., 27(1), 53-59(2003).

���� �41� �6� 2003� 12�