Order parameters of the liquid crystal interface layer at a rubbed polymer surface

	Order parameters of the liquid crystal interface layer at a rubbed polymer surface
其他题名	论文其他题名
	Li X. A.; Tohyama T.; Miyashita T.; Uchida T.
	2004
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	96 期号:4 页码:1953-1958
摘要	In this paper, the liquid crystal (LC) order parameters of the interface layers at rubbed polymer surfaces were studied. The LC films in this study were made with either polyvinyl alcohol or polyimide and the test LCs were filled into wedge-shaped cells for various measurements. The real distribution of order parameters from LC bulk to the interface was obtained by measuring the anisotropic infrared absorbance of sample films. It was found that the order parameters start to decrease where the LC layer thickness is smaller than 10 nm, and the order parameter of LC monolayer at the rubbed polymer surface is only 1/3-1/2 of that of the LC bulk even in a strong rubbing condition. When the temperature was increased to the transition point, the LC interface layer (excluding the adsorption monolayer) completed the phase transition while the bulk layer remained in LC phase. This was a further evidence that the order parameter of the interface layer is lower than that of the bulk. (C) 2004 American Institute of Physics.
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/181722/25084
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li X. A.,Tohyama T.,Miyashita T.,et al. Order parameters of the liquid crystal interface layer at a rubbed polymer surface[J]. Journal of Applied Physics,2004,96(4):1953-1958.
APA	Li X. A.,Tohyama T.,Miyashita T.,&Uchida T..(2004).Order parameters of the liquid crystal interface layer at a rubbed polymer surface.Journal of Applied Physics,96(4),1953-1958.
MLA	Li X. A.,et al."Order parameters of the liquid crystal interface layer at a rubbed polymer surface".Journal of Applied Physics 96.4(2004):1953-1958.

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