聚甲基丙烯酸肉桂酰氧基乙酯的光化学反应在液晶分子排列取向中的作用  

THE EFFECT OF PHOTOCHEMICAL REACTION OF CINNAMATE MATERIAL 2-(CINNAMOYLOXY)ETHYL METHACRYLATE ON LIQUID CRYSTAL MOLECULES ALIGNMENT 

作　　者：梁兆颜[1] 闫石 宣丽[1] 马凯[1] 黄锡珉[1] 谢景力[2] 张彦杰[2] 田颜清[2] 赵英英[2] 张金宝[3] 

机构地区：[1]中国科学院长春物理研究所液晶实验室,中国科学院激发态物理开放实验室,长春130021 [2]吉林大学化学系,长春130023 [3]长春科技大学,长春130023

出　　处：《物理学报》2000年第6期1114-1119,共6页Acta Physica Sinica

基　　金：吉林省科技发展计划基金!(批准号 :19990 5 15 );中国科学院激发态物理开放实验室基金!(批准号 :19970 410 )资助的课题&&

摘　　要：研究了光聚合物材料聚甲基丙烯酸肉桂酰氧基乙酯 (CEMC)对液晶材料LC 6 710A的取向作用 ,取向层表面在光化学反应前后的变化 ;测量了光控取向膜液晶盒中液晶分子的预倾角及单面光控取向扭曲向列液晶显示器(TNLCD)的电光特性和时间响应特性 ,研究了这种材料的光化学反应过程 ,以及液晶分子排列取向的机理 .We have investigated the alignment of liquid crystal LC\|6710A molecules with Cinnamate material 2\|(cinnamoyloxy) ethyl methacrylate (CEMC).The change of alignment of substrate surface was observed before and after photochemical reaction.The pretilt angle of LC molecules in photo\|alignment cell was measured.The electro\|optical property and time response curves of twisted nematic liquid crystal display (TNLCD) with single side photo\|alignment substrate were obtained.The process of photochemical reaction of the material CEMC using linear polarized photopolymerization method by UV\|light was studied in this paper.The mechanism of liquid crystal molecules alignment on substrate surface was discussed.

关 键 词：CEMC 光化学反应 液晶分子 排列取向 

分 类 号：O753.2[理学—晶体学]