- Synthesis of new aromatic poly(amide imide)s from unsymmetrical extended diamine containing a phthalazinone moiety
- 点击次数：
- 论文类型： 期刊论文
- 发表时间： 2004-08-01
- 发表刊物： CHINESE JOURNAL OF POLYMER SCIENCE
- 收录刊物： Scopus、SCIE、EI
- 卷号： 22
- 期号： 4
- 页面范围： 389-393
- ISSN号： 0256-7679
- 关键字： poly(arylene amide imide)s; heterocyclic polymer; high-performance polymer; phthalazinone
- 摘要： 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.
