Phase transition and thermal stability of reentrant smectic phase in mixture of liquid crystalline materials

被引：1

作者：

Govindaiah, T. N. ^{[1
]}

机构：

[1] Govt Coll Autonomous, Postgrad Dept Phys, Mandya 571401, India

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2016年 / 625卷 / 01期

关键词：

reentrant smectic phase; pitch; phase transition; Molecular orientation; BINARY-MIXTURES; NONMESOGENIC COMPOUNDS;

D O I：

10.1080/15421406.2015.1069012

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In the present work, our investigation is to study the optical and thermal properties of the binary mixture of cholesteric and nematic compounds namely, decyloxy benzoic acid (DBA), and cholesteryl chloride (ChCl), which exhibits different liquid crystalline phases with reentrant smectic-A phase. The reentrant smectic-A phase has been observed at different concentrations and at different temperatures. The existence of reentrant smectic-A phase has been observed by optical microscopic studies. The temperature variation of optical anisotropy, X-ray and helical pitch of the cholesteric (N-*) phase has also been discussed.

引用

页码：99 / 105

页数：7

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