引用本文:
张春华, 杨正华, 丁孟贤, 吴爱国, 李壮. 主链含氟聚酰亚胺液晶取向排列剂的表面性能及微观形貌[J]. 应用化学,
2001, 18(7): 544-547.
Citation: ZHANG Chun-Hu, YANG Zheng-Hu, DING Meng-Xian, WU Ai-Guo, LI Zhuang. The Surface Property and Morphology of the Polyimides Having Fluorinated Main Chains for Liquid Crystal Alignment[J]. Chinese Journal of Applied Chemistry, 2001, 18(7): 544-547.
Citation: ZHANG Chun-Hu, YANG Zheng-Hu, DING Meng-Xian, WU Ai-Guo, LI Zhuang. The Surface Property and Morphology of the Polyimides Having Fluorinated Main Chains for Liquid Crystal Alignment[J]. Chinese Journal of Applied Chemistry, 2001, 18(7): 544-547.
主链含氟聚酰亚胺液晶取向排列剂的表面性能及微观形貌
English
The Surface Property and Morphology of the Polyimides Having Fluorinated Main Chains for Liquid Crystal Alignment
Abstract:
The liquid crystal alignment with higher pretilt angles was obtained from polyimide(PI) having fluorinated main chains.The contact angles of the PI films were found to be dependent on the fluorine content of the PI.The morphology of the rubbed PI surfaces with fluorinated and unfluorinated main chains for liquid crystal alignment was compared by observation with atomic force microscope(AFM).The results showed that the surface of the rubbed PI films have regular and narrow intervals, aligned along the rubbing direction.The fluorinated PI surfaces are superior to the unfluorinated PI surfaces in regularity.
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Key words:
- polyimide
- / fluorinated main chain
- / liquid crystal alignment
- / surface properties
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