聚酰亚胺液晶取向膜的制备及性能研究  

Preparation and Properties of Polyimides as Liquid Crystal Alignment Layer

作　　者：文璞山 何瑞 赵光练 梁兴 李明勳 WEN Pu-shan;HE Rui;ZHAO Guang-lian;LIANG Xing;LI Ming-xun(School of Chemistry and Chemical Engineering,Zunyi Normal University,Zunyi 563006,China;Wuhan China Star Optoelectronics Technology Co.,Ltd.,Wuhan 430078,China;Graduate School of Flexible and Printable Electronics,Jeonbuk National University,Jeonju 54896,Korea)

机构地区：[1]遵义师范学院化学化工学院,贵州遵义563006 [2]武汉华星光电技术有限公司,湖北武汉430078 [3]韩国全北大学柔韧印刷电子研究生院,韩国全州54896

出　　处：《塑料工业》2020年第8期16-20,共5页China Plastics Industry

基　　金：国家自然科学基金资助项目(21766040);贵州省科技厅科学技术基金(黔科合基础[2016]1419);贵州省教育厅自然科学研究项目(黔教合KY字[2019]058);Basic Science Research Program through the National Research Foundation of Korea(NRF)funded by the Ministry of Education(2018R1D1A1B07044250)。

摘　　要：以1,3-二硝基苯为原料通过四步合成了3,5-二氨基联苯,将制得的二胺单体分别与环丁烷四甲酸二酐和均苯四甲酸二酐聚合得到二种新型聚酰亚胺。通过核磁氢谱和红外光谱分别对单体和聚合物的结构进行了表征,测试了聚合物的溶解性、热稳定性以及用作液晶取向膜的性能。制得的聚酰亚胺薄膜具有良好的热稳定性和平行取向性能。3,5-diaminobiphenyl were synthesized from 1,3-dinitrobenzene in four steps.Two new polyimides were synthesized by polymerization of 3,5-diaminobiphenyl with 1,2,3,4-cyclobutanetetracarboxylic dianhydride and pyromellitic dianhydride,respectively.The structure of the monomer and the polyimides were characterized by hydrogen nuclear magnetic spectra(1 H NMR)and Fourier transform infrared spectroscopy(FTIR).The solubility,thermal stability and properties of the polyimides as liquid crystal alignment layer were investigated.The prepared polyimide film shows good thermal stability and parallel alignment.

关 键 词：聚酰亚胺 合成 取向膜 溶解性 

分 类 号：TQ323.7[化学工程—合成树脂塑料工业]