异构化聚酰亚胺取向膜预倾角的研究  

Pretilt Angle for Isomeric Alignment Films of Polyimide

作　　者：方省众[1] 李青璇[1] 王震[1] 丁孟贤[1] 鲁兴海[2] 宣丽[2] 

机构地区：[1]中国科学院长春应用化学研究所高分子物理与化学国家重点实验室,吉林长春130022 [2]中国科学院长春光学精密机械与物理研究所,吉林长春130021

出　　处：《液晶与显示》2003年第1期18-20,共3页Chinese Journal of Liquid Crystals and Displays

基　　金：国家自然科学基金资助项目(50033010)

摘　　要：制备了一系列异构化的聚酰亚胺取向膜,并用晶体旋转法测定了它们的预倾角。发现由芳香类异构化二酐制得的聚酰亚胺膜对预倾角影响不大,而由环己烷类顺反异构化二酐制得的聚酰亚胺膜的预倾角变化较大,且顺式的比反式的大。A series of isomeric alignment films of polyimide were prepared in our laboratory, the pretilt angle of each film was measured by the crystalrotation method. It was found that the pretilt angles ofpolyimide films prepared from different isomeric aromatic dianhydrides changed lowerly, those fromisomeric cyclohexane dianhydrides changed greatly, and the pretilt angle of cisdianhydride was greater than that of corresponding transdianhydride. 

关 键 词：聚酰亚胺取向膜 晶体旋转法 预倾角 异构化二酐 液晶显示 

分 类 号：TN104.3[电子电信—物理电子学] O484.1[理学—固体物理]