Studies on Synthesis and Properties of Polyimides : IV. 6FDA-Polyimides

폴리이미드의 제조와 성질에 관한 연구 : IV. 6FDA계 폴리이미드

  • Lee, Dong-Ho (Dept. of Poly. Sci., Eng. College, Kyungpook Nat'l Univ.) ;
  • Kim, Seung-Hwan (Dept. of Poly. Sci., Eng. College, Kyungpook Nat'l Univ.) ;
  • Yoo, Tae--Wook (Dept. of Poly. Sci., Eng. College, Kyungpook Nat'l Univ.) ;
  • Koo, Seung-Young (Dept. of Poly. Sci., Eng. College, Kyungpook Nat'l Univ.)
  • 이동호 (경북대학교 고분자공학과) ;
  • 김승환 (경북대학교 고분자공학과) ;
  • 유태욱 (경북대학교 고분자공학과) ;
  • 구승영 (경북대학교 고분자공학과)
  • Received : 1993.12.08
  • Accepted : 1994.07.13
  • Published : 1994.10.01

Abstract

Using 2,2-Bis-(3,4-dicarboxyphenyl)hexafluoropropane dianhydride, 2,2-bis-[4-(4-aminophenoxy)phenyl] hexafluoropropane and 4,4-diaminodiphenyl ether, the homopolyamic acids, copolyamic acids and blend of homopolyamic acids were prepared and converted to polyimide(PI)s by thermal imidization. In results, it has been found that a exchange reaction of polyamic acids can be occurred during thermal imidization. With measurement of mechanical properties, it was suggested that PI/PI molecular composite can be obtained by copolymerization or physical blending of homopolyamic acids.

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