PMDA/ODA型聚酰亚胺的共聚改性研究  

Study on modification of PMDA/ODA-copolyimide

作　　者：杨建伟[1,2] 刘治猛[1,2] 钟赤锋[2] 刘煜平[2] 贾德民[1] 

机构地区：[1]华南理工大学材料科学与工程学院,广州510641 [2]东莞理工学院材料与环境工程研究中心,东莞523808

出　　处：《化工新型材料》2009年第7期59-60,72,共3页New Chemical Materials

基　　金：东莞市科技计划项目(2004A10605001)

摘　　要：以1,3-双(4-氨基苯氧基)苯(BAPB134)和4,4’-二氨基二苯醚(ODA)为二胺单体,与均苯四甲酸二酐(PM-DA)进行共聚,合成了一系列具有一定溶解性的聚酰亚胺(PI)。采用IR、TGA、DSC、XRD和拉伸实验等手段,对其结构和性能进行了研究。结果表明:共聚酰亚胺(CoPI)薄膜为非晶态结构,其热性能和拉伸强度与均聚物相当,模量有所降低,而断裂伸长率显著提高。A series of soluble polyimides （PI） were prepared by polycondensation of 1,3-bis（4-aminophenoxy）ben-zene （BAPB134）, 4,4＇-diaminodephenyl ether （ODA） and pyromellitic dianhydride （PMDA）. Their structures and prop- erties were characterized by IR, TGA, DSC, XRD and tensile tester. The XRD results showed that copolyimide （CoPI） films were amorphous state, and the DSC and TGA analysises showed that they had the same high thermal behavior as homopolyimides. At the same time, the tensile tester showed that tensile strain of CoPI was largely improved, but tensile modulus was lower.

关 键 词：共聚酰亚胺 1 3-双(4-氨基苯氧基)苯 改性 

分 类 号：TQ323.7[化学工程—合成树脂塑料工业]