New series of chiral smectic chlorinated liquid crystals

被引：32

作者：

Bubnov, A ^{[1
]}

Hamplová, V ^{[1
]}

Kaspar, M ^{[1
]}

Glogarová, M ^{[1
]}

Vanek, P ^{[1
]}

机构：

[1] Acad Sci Czech Republ, Inst Phys, Prague 18221 8, Czech Republic

来源：

FERROELECTRICS | 2000年 / 243卷 / 1-4期

关键词：

ferroelectric liquid crystals; chlorinated liquid crystals; spontaneous polarisation; dielectric properties;

D O I：

10.1080/00150190008008004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two series of ferroelectric liquid crystalline materials, containing a lateral chlorine group on the aromatic ring of the molecular core, have been synthesised and investigated. Sequences of mesophases and phase transition temperatures have been determined for all substances. The temperature dependences of the complex permittivity and the spontaneous polarisation were determined in the whole range of the ferroelectric SmC* phase. The substitution of chlorine increases the values of spontaneous polarisation more than 5 times in comparison with non-chlorinated compounds.

引用

页码：27 / 35

页数：9

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