MECHANISM OF NEMATIC MOLECULAR ALIGNMENT BASED ON FRICTION CHARGES AND SURFACE-TOPOLOGY BY RUBBING

doi:10.1080/02678299308027646

	MECHANISM OF NEMATIC MOLECULAR ALIGNMENT BASED ON FRICTION CHARGES AND SURFACE-TOPOLOGY BY RUBBING
	SUGIMURA, A; ZHONGCAN, OY
	1993
会议日期	JUN 21-26, 1992
会议地点	PISA, ITALY
关键词	LIQUID-CRYSTAL STRENGTH
卷号	14
期号	2
DOI	10.1080/02678299308027646
页码	319-326
英文摘要	A new and simple electric charge interaction mechanism has been proposed to explain the behaviour of the tilt angle of liquid crystals by rubbing. The mechanism of the molecular alignment is elucidated based on the effect of a static electric charge on a substrate surface treated by rubbing. An electric field which is dependent on the topology of a substrate surface allows a planar orientation of molecules with positive dielectric anisotropy. With increasing rubbing strength, the tilt angle varies slowly. The director of molecules with negative dielectric anisotropy is uniform and has a tilt angle determined by the molecular permanent dipole direction. The air-liquid crystal interface case is also considered. This model enables us to give a unified picture of the molecular alignment mechanism.
会议录	LIQUID CRYSTALS
会议录出版者	TAYLOR & FRANCIS LTD
会议录出版地	LONDON
语种	英语
URL标识	查看原文
ISSN号	0267-8292
WOS研究方向	Chemistry ; Crystallography ; Materials Science
内容类型	会议论文
源URL	[http://ir.itp.ac.cn/handle/311006/23811]
专题	SCI会议论文
作者单位	ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
推荐引用方式 GB/T 7714	SUGIMURA, A,ZHONGCAN, OY. MECHANISM OF NEMATIC MOLECULAR ALIGNMENT BASED ON FRICTION CHARGES AND SURFACE-TOPOLOGY BY RUBBING[C]. 见:. PISA, ITALY. JUN 21-26, 1992.