Novel polyimides derived from 2,3,3′,4′-benzophenonetetracarboxylic dianhydride

被引：77

作者：

Fang, XZ ^{[1
]}

Wang, Z ^{[1
]}

Yang, ZH ^{[1
]}

Gao, LX ^{[1
]}

Li, QX ^{[1
]}

Ding, MX ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Dept Polymer Engn, Changchun 130022, Peoples R China

来源：

POLYMER | 2003年 / 44卷 / 09期

基金：

中国国家自然科学基金;

关键词：

2,3,3 ',4 '-BTDA; isomeric polyimides; structure-property relations;

D O I：

10.1016/S0032-3861(03)00181-2

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A series of polyimides (PIs) based on 2,3,3',4'-benzophenonetetracarboxylic dianhydride (2,3,3',4'-BTDA) and 3,3',4,4'-BTDA were prepared by the conventional two-step process. The properties of the 2,3,3',4'-BTDA based polyimides were compared with those of polyimides prepared from 3,3',4,4'-BTDA. It was found that PIs from 2,3,3,4'-BTDA have higher glass transition temperature and better solubility without sacrificing their thermal properties. Furthermore the theological properties of PMR-15 type polyimide resins based on 2,3,3',4'-BTDA showed lower melt viscosity and wider melt flow region (flow window) compared with those from 3,3',4,4'-BTDA. The structure-property relations resulted from isomerism were discussed. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：2641 / 2646

页数：6

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