含芳酯键双马来酰亚胺的合成与液晶行为  

The Synthesis and Liquid Crystalline Behavior of Bismaleimide Containing Aromatic Ester Bonds

作　　者：刘孝波[1] 江璐霞[1] 蔡兴贤[1] 

机构地区：[1]成都科技大学高分子材料系,610065

出　　处：《塑料工业》1994年第2期19-26,42,共9页China Plastics Industry

基　　金：国家自然科学基金资助项目59373145

摘　　要：本文合成了含芳酯键的双马来酰亚胺及其与二苯醚二胺的共聚物。应用ＦＴＩＲ，Ｈ－ＮＭＲ，ＤＴＡ，ＤＳＣ，热台偏光显微镜，Ｘ－射线衍射研究了该类双马来酰亚胺的结构，热性能和热致液晶行为。研究表明：热固性聚合物的液晶行为随反应程度或交联密度的增大而增强，而且液晶特征能够保留在交联网络中，形成液晶聚合物网络材料。Liquid crystalline bismaleimide containing aromatic ester bonds and its copolymer with 4.4' -diami-nodiphenylether were prepared. The structure, thermal and thermotropic liquid crystalline behaviors of the bismaleimede were studied by FTIR,1HNMR,DTA,DSC,hot stage polarized microscpoy and wide angle X - ray diffraction. The results showed the liquid crystalline behavious of thermosetting polymer became more obvious with the increase of the reaction or crosslinking density, and were maintained in the crossiinked networks, resulting in liquid crystalline polymer networks.

关 键 词：芳酯键 液晶 双马来酰亚胺 合成 

分 类 号：O633.21[理学—高分子化学]