The pyrolysis behaviors of polyimide foam derived from 3,3′,4,4′-benzophenone tetracarboxylic dianhydride/4,4′-oxydianiline
✍ Scribed by Yan-Xia Shen; Mao-Sheng Zhan; Kai Wang; Xiao-Huan Li; Pi-Chang Pan
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 412 KB
- Volume
- 115
- Category
- Article
- ISSN
- 0021-8995
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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
## 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