FERRIELECTRIC AND ANTIFERROELECTRIC PROPERTIES OF A FLUORO-SUBSTITUTED BIPHENYL ESTER

被引：29

作者：

NISHIYAMA, I

CHIN, E

GOODBY, JW

机构：

[1] UNIV HULL,SCH CHEM,HULL HU6 7RX,N HUMBERSIDE,ENGLAND

[2] AT&T BELL LABS,MURRAY HILL,NJ 07974

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1993年 / 3卷 / 02期

关键词：

LIQUID CRYSTAL; FERROELECTRICITY; ANTIFERROELECTRICITY; FERRIELECTRICITY; CHIRALITY;

D O I：

10.1039/jm9930300161

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The material (R)-1-methylheptyl 4-(4'-n-dodecyloxybiphenyl-4-ylcarbonloxy)-3-fluorobenzoate has been prepared and its liquid-crystalline properties investigated. This material was selected for synthesis because it was expected to exhibit a ferroelectric smectic C* phase with a large value for its spontaneous polarization. Moreover, as the material carries a terminal peripheral chiral 1-methylheptyl moiety it was also expected to exhibit strong chirality-dependent properties. Thus, the material was also found to possess ferrielectric and antiferroelectric modifications in addition to the normal ferroelectric phase. In particular, the ferrielectric phase was found to exhibit unusual behaviour in the presence of applied electric fields.

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页码：161 / 168

页数：8

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