| 光敏自组装单层膜用于液晶光控取向的研究 |
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| 引用本文： | 彭增辉,于涛,胡立发,刘永刚,阮圣平,鲁兴海,宣丽.光敏自组装单层膜用于液晶光控取向的研究[J].液晶与显示,2004,19(3):157-162. |
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| 作者姓名： | 彭增辉 于涛 胡立发 刘永刚 阮圣平 鲁兴海 宣丽 |
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| 作者单位： | 中国科学院,激发态物理重点实验室,吉林,长春;中国科学院,长春光学精密机械与物理研究所,吉林,长春,130033 |
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| 基金项目： | 国家自然科学基金资助项目(No.19974046,No.59973020,No.60277033)，吉林省科委基金资助项目(No.20010579,No.20020603)，中国科学院长春光机所青年基金资助项目(No.Q03M22Z) |
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| 摘 要： | 用丁二酸酐和7-羟基香豆素合成了含有脂肪族羧酸基团的光敏化合物，利用脱水反应使它在玻璃(或石英)基板表面形成自组装单层膜。用偏振紫外光照射光敏性自组装膜，与光矢量方向匹配的香豆素基团发生2 2]周环反应，反应产物沿辐照光的偏振方向分布，形成表面张力各向异性的薄膜。用它作为向列相液晶取向膜制成平行液晶器件，在偏光显微镜下观察，发现取得了均一、稳定的取向效果。并且该取向膜有良好的热稳定性。
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| 关 键 词： | 自组装膜 液晶取向 光控取向 线性偏振光聚合 |
| 文章编号： | 1007-2780(2004)03-0157-06 |
| 修稿时间： | 2003年12月16 |
Using a Self-assembled Monolayer with Coumarin Group as Photoalignment Film of Nematic Liquid Crystal |
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| PENG Zeng-hui,YU Tao,HU Li-fa,LIU Yong-gang,RUAN Sheng-ping,LU Xing-hai,XUAN Licience,Changchun,China,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Science,Changchun,China.Using a Self-assembled Monolayer with Coumarin Group as Photoalignment Film of Nematic Liquid Crystal[J].Chinese Journal of Liquid Crystals and Displays,2004,19(3):157-162. |
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| Authors: | PENG Zeng-hui YU Tao HU Li-fa LIU Yong-gang RUAN Sheng-ping LU Xing-hai XUAN Licience Changchun China Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Science Changchun China |
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| Affiliation: | PENG Zeng-hui,YU Tao,HU Li-fa,LIU Yong-gang,RUAN Sheng-ping,LU Xing-hai,XUAN Licience,Changchun130033,China,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Science,Changchun130033,China) |
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| Abstract: | A succinic acid (7-hydroxycoumarin) ester was synthesized by using succinic anhydride and 7-hydroxycoumarin. This material could form self-assembled monolayer on quartz substrate by dehydration reaction. When polarized UV irradiated the film, the photopolymerizable double bond could occur2+2]cycloaddition.Through this process an anisotropic film was prepared. Using this anisotropic film as alignment layer of nematic liquid crystals, a uniform and stable result was obtained. |
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| Keywords: | self-assembled film liquid crystal alignment photoalignment polarized UV polymerization |
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