Alignment of liquid crystals induced by a photopolymerized self-assembled film

	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
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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