| 单体平均官能度对制备液晶/聚合物光栅的影响 |
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| 引用本文： | 刘永刚,马骥,宋静,胡立发,宣丽.单体平均官能度对制备液晶/聚合物光栅的影响[J].液晶与显示,2005,20(3):210-214. |
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| 作者姓名： | 刘永刚 马骥 宋静 胡立发 宣丽 |
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| 作者单位： | 中国科学院,长春光学精密机械与物理研究所,应用光学国家重点实验室,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.60277033,No.50473040)，吉林省科委基金资助项目(No.20020603)，中国科学院长春光学精密机械与物理研究所青年基金资助项目(No.Q03M22Z) |
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| 摘 要： | 液晶／聚合物光栅，即全息聚合物分散液晶光栅(Holographic polymer dispersed liquid crystal，HPDLC)是一种新型光电子信息功能器件。采用紫外光固化丙烯酸脂和向列相液晶TEB30A制备了透射HPDLC型光栅，探讨了单体平均官能度对液晶／聚合物光栅的影响。实验将官能度分别为2．0和5．0的两种单体混合。使平均官能度在2．0～5．0变化，制备出系列HPDLC透射型光栅，通过观察光栅形貌、测量光栅的衍射效率及驱动电压，分析了相分离过程中的光聚合速度和液晶扩散速度的匹配问题。
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| 关 键 词： | 液晶／聚合物光栅 平均官能度 相分离 衍射效率 |
| 文章编号： | 1007-2780(2005)03-0210-05 |
| 修稿时间： | 2004年9月28日 |
Effect of Monomer Average Functionality on Liquid Crystals /Polymer Grating |
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| LIU Yong-gang,MA Ji,SONG Jing,HU Li-fa,XUAN Li.Effect of Monomer Average Functionality on Liquid Crystals /Polymer Grating[J].Chinese Journal of Liquid Crystals and Displays,2005,20(3):210-214. |
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| Authors: | LIU Yong-gang MA Ji SONG Jing HU Li-fa XUAN Li |
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| Abstract: | Holographic polymer dispersed liquid crystal is a kind of novel photoelectronic information functional device. In this study, transmission gratings were formed holographically in polymer dispersed liquid crystal composite materials using commercially available UV-curable acrylate monomers and the nematic liquid crystal TEB30A.The effect of monomer average functionality on the polymer/liquid crystal gratings were investigated. Monomer mixtures with average functionality in the range 2.0 to (5.0) were used to prepare HPDLC transmission grating. The morphology, diffraction efficiency,vol-(tage) of the HPDLC were measured. The results were discussed in this work. |
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| Keywords: | liquid crystal grating average functionality phase separation diffraction efficiency |
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