Textile Coloration and Finishing (한국염색가공학회지)
- Volume 7 Issue 4
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- Pages.39-44
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- 1995
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- 1229-0033(pISSN)
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- 2234-036X(eISSN)
A Study on Chemical Cyclodehydration of Aromatic Poly(ether-amide-amic acid)s
방향족 폴리(에테르-아미드-아미드산) 중합체의 화학적 탈수 고리화 반응
- Ahn, Young Moo (Dept. of Clothing and Textiles, Hansung Univ., Seoul, Korea)
- Published : 1995.12.01
Abstract
A study has been made about some correlations in the chemical cyclization of precursors, poly(ether-amide-amic acid)s by treating in solution a mixture of acetic anhydride and pyridine in the presence of 4,4-dimethyl formamide, with the poly(ether-amic acid)s being respectively reacted between trimellitic anhydride chloride and 3 kinds of diamines, i.e., 4,4'-bis(m-aminophenoxy) benzophenone, 2,2'-bis[4-(m-aminophenoxy) phenyl] propane and 4,4'-bis(m-aminophenoxy) diphenyl sulfone. The cyclization of imide ring in the poly(ether-amide-amic acid)s may be regarded as an intramolecular acylation of amide group by o-carboxyl group. As a result of this reseach, the effects on the conversion to poly(ether-amide-imide)s have been found by changing the ratio of cosolvents in the cyclization mixture.
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