Properties of the Liquid Crystals Formed by Certain Azomethines Containing Terminal Cycloalkyl Ring Systems
作者:
D.J. Byron,
A.S. Matharu,
M. Rees,
R.C. Wilson,
期刊:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
(Taylor Available online 1995)
卷期:
Volume 258,
issue 1
页码: 217-228
ISSN:1058-725X
年代: 1995
DOI:10.1080/10587259508034562
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Fifty-six compounds containing cyclopropyl, cycloheptyl, or cyclooctyl ring systems, members of six homologous series of azomethines related to the nO.m series, have been prepared and their liquid crystal behavior investigated. These series show less extensive smectic polymorphism than the analogous cyclopentyl and cyclohexyl derivatives, previously reported. The effect on nematic thermal stability of an increase in the size of the cycloalkyl group present in related azomethines is discussed. Azomethines containing cyclopropyl, cycloheptyl and cyclooctyl rings have lower nematic thermal stability than their cyclopentyl and cyclohexyl homologues.
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