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

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.