Morphology of polyimide fibers derived from 3,3′,4,4′-biphenyltetracarboxylic dianhydride and 4,4′-oxydianiline
✍ Scribed by Qing-Hua Zhang; Mian Dai; Meng-Xian Ding; Da-Jun Chen; Lian-Xun Gao
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 378 KB
- Volume
- 93
- Category
- Article
- ISSN
- 0021-8995
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## Abstract Having previously demonstrated that the polyimide derived from 3,3′,4,4′‐biphenyltetracarboxylic dianhydride (BPDA) and 1,2‐bis(4‐aminophenoxy)benzene [termed triphenyl ether catechol diamine (TPEC)] exhibited superior tensile properties in addition to good thermal properties, we now pr
Four kinds of 3,3 ,4,4-benzophenone tetracarboxylic dianhydride (BTDA) -pyromelliitic dianhydride (PMDA) alternating polyimide (BTDA-PMDA API) were obtained by reacting 1 mol BTDA with 2 mol diamines to form BTDA chainextended diamines (BTDA CED), followed by the addition of 1 mol PMDA to yield the