聚酰胺酸的合成及其酰亚胺化研究Study on the Synthesis and Imidization of Poly(amic acid)
李焱,于俊荣,刘兆峰
LI Yan, YU Jun-rong, LIU Zhao-feng (State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
摘要(Abstract)：
采用均苯四酸二酐(PMDA)和4,4'-二氨基二苯醚(ODA)为单体,N,N-二甲基乙酰胺(DMAc)为溶剂,合成聚酰亚胺的前驱体聚酰胺酸(PAA)。研究了溶剂体系、反应温度、时间、投料比和总固含量等因素对所得聚酰胺酸特性黏度的影响。试制了聚酰胺酸和聚酰亚胺(PI)薄膜,对其进行了红外光谱分析及力学性能测试。
In this paper, a kind of polyamic acid(PAA) has been synthesized, with N,N-dimethylacetamide(DMAc) as solvent, from pyromellitic dianhydride(PMDA) and 4,4'-diamino diphenyl(ODA) by solution polycondensation. Studies are concentrated on the effects of the reaction conditions, such as reaction temperature, time, water content of the solvent, solution concentration and etc, on the intrinsic viscosity of PAA. PAA and polyimide films are produced by several methods,the chemical structure and mechanical properties of films are analyzed by FTIR and mechanical test.
关键词(KeyWords)：
聚酰亚胺;聚酰胺酸;缩聚;特性黏度
polyimide, polyamic acid, polycondensation, intrinsic viscosity
基金项目(Foundation):
作者(Author):
李焱,于俊荣,刘兆峰
LI Yan, YU Jun-rong, LIU Zhao-feng (State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
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