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Indexed by:期刊论文

Date of Publication:2004-08-01

Journal:CHINESE JOURNAL OF POLYMER SCIENCE

Included Journals:Scopus、SCIE、EI

Volume:22

Issue:4

Page Number:389-393

ISSN No.:0256-7679

Key Words:poly(arylene amide imide)s; heterocyclic polymer; high-performance polymer; phthalazinone

Abstract:The direct polymerization of an unsymmetrical kink non-coplanar heterocyclic diamine (1) with various aromatic bis(trimellitimide)s (2a-e) using triphenyl phosphite and pyridine as condensing agents could generate a series of new aromatic poly(amide imide)s (3a-e) containing the kink non-coplanar plithalazinone heterocyclic units in the polymer main chains with inherent viscosities of 0.58-0.66 dL/g. The polymers are readily soluble in a variety of solvents such as N,N-dimethylformamide, NN-dimethylacetamide, dimethyl sulfoxide, N-methyl-2-pyrrolidinone, pyridine and m-cresol and can be cast to form flexible and tough films. The glass transition temperatures of polymers (T-g) are in the range of 301-327degreesC, and the temperatures for 5% weight loss in nitrogen are in the range of 498-521 degreesC.