Abstract

A series of novel co-polynaphthalimides were synthesized from 1,4,5,8-naphthalene tetracarboxylic dianhydride, 9,9-bis(4-aminophenyl) fluorene and various bis(ether amine)s by high-temperature solution polycondensation reaction. The synthesized polymers were characterized using FTIR and elemental analysis techniques. As a result, all polymers were soluble in m-cresol and some of them were dissolved in 1‑methyl-2-pyrrolidone. In addition, these polymers could afford transparent and tough films with strength at break of 77–100 MPa via casting relative m-cresol solutions. These polymers are characterized by softening temperatures of 230–267°C, also they exhibited high thermal stability with 10% weight loss temperatures above 500°C in nitrogen or air atmosphere, and higher 44% of char yields at 800°C.

中文翻译：

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基于1,4,5,8-萘四甲酸二酐，9,9-双（4-氨基苯基）芴和各种双（醚胺）的有机可溶性共聚萘二甲酰亚胺

摘要

通过高温溶液缩聚反应，由1,4,5,8-萘四甲酸二酐，9,9-双（4-氨基苯基）芴和各种双（醚胺）合成了一系列新型的共聚萘二甲酰亚胺。使用FTIR和元素分析技术对合成的聚合物进行了表征。其结果是，所有的聚合物中是可溶的米甲酚和它们中的一些溶解在1-甲基-2-吡咯烷酮。此外，这些聚合物可以通过铸造相对得到与在77-100兆帕的断裂强度和透明坚韧的膜米-甲酚溶液。这些聚合物的特点是软化温度为230–267°C，它们还显示出高的热稳定性，在氮气或空气中，失重温度在500°C以上时有10％的失重温度，而在800°C时炭的收率高44％。