Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Alignment of liquid crystals induced by a photopolymerized self-assembled film | |
其他题名 | 论文其他题名 |
Peng Z. H.; Xuan L.![]() | |
2005 | |
发表期刊 | Liquid Crystals
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ISSN | 0267-8292 |
卷号 | 32期号:2页码:239-246 |
摘要 | An alignment film derived from a photopolymerized self-assembled film may be used to orient nematic liquid crystals after irradiating the film with linearly polarized UV ( LPUV). A photosensitive cationic amphiphile was first synthesized containing two double bonds and which could be polymerized by UV. A layer- by- layer self- assembled multilayer film was next prepared in an aqueous solution of the cationic amphiphile and poly(sodium 4styrenesulphonate); the UV- Vis spectra showed that each layer of the LBL multilayer film was uniform. When the film was irradiated by LPUV, the photosensitive double bonds underwent [2+ 2] cycloaddition along the vector direction of LPUV. The polarized UV-Vis absorption spectra also provided evidence that the film was anisotropic, i.e. the photopolymerization was along a certain direction. The anisotropic film was used as an alignment layer for nematic liquid crystals, and observations under a polarizing microscope indicated that the alignment of the liquid crystals was good, as expected, and that the orientation direction of the liquid crystals was always perpendicular to the electric vector of the irradiating LPUV. |
收录类别 | SCI |
语种 | 英语 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/25023 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Peng Z. H.,Xuan L.. Alignment of liquid crystals induced by a photopolymerized self-assembled film[J]. Liquid Crystals,2005,32(2):239-246. |
APA | Peng Z. H.,&Xuan L..(2005).Alignment of liquid crystals induced by a photopolymerized self-assembled film.Liquid Crystals,32(2),239-246. |
MLA | Peng Z. H.,et al."Alignment of liquid crystals induced by a photopolymerized self-assembled film".Liquid Crystals 32.2(2005):239-246. |
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