Applied Chemistry for Engineering (공업화학)
- Volume 2 Issue 4
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- Pages.340-347
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- 1991
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- 1225-0112(pISSN)
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- 2288-4505(eISSN)
Synthesis and Properties of Siloxane Containing Copolyimides
실록산이 함유된 폴리이미드의 합성과 물성
- Moon, Yoon-Duk (Department of Industrial Chemistry, College of Engineering, Hanyang University) ;
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Lee, Young Moo
(Department of Industrial Chemistry, College of Engineering, Hanyang University)
- Received : 1991.07.01
- Published : 1991.12.30
Abstract
Siloxane containing copolyimide (SPI) was synthesized from 3, 3', 4, 4'-benzophenonetetracarboxylic dianhydride(BTDA), 4, 4'-methylene dianiline(MDA), 4, 4'-oxydianiline(ODA) and amine-terminated polydimethyl-siloxane(PDMS). Homopolyamic acid(HPAA) in tetrahydrofuran(THF) was reacted with PDMS to obtain siloxane containing polyamic acid(SPAA) followed by the thermal curing to manufacture SPI. SPAA and HPAA exhibited inherent viscosity value of 0.35~0.48dl/g. Glass transition temperature of SPI ranged in
3, 3', 4, 4'-Benzophenonetetracarboxylic dianhydride(BTDA)와 방향족 디아인민 4, 4'-oxydianiline(ODA) 및 amine terminated polydimethyl siloxane(PDMS)을 이용하여 homopolyimide(HPI)와 siloxane 함유 polyimide(SPI)를 합성하였다. 제 1 단계 반응생성물인 homopolyamic acid(HPAA)는 극성용매인 N-methylpyrrolidone(NMP)을 이용하여 얻었다. 제 1 단계에서 얻은 HPAA와 tetrahydrofuran(THF)에 녹인 세 종류의 PDMS(분자량
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