A chiral material with a new phase sequence: Twist grain boundary smectic A phase - Blue phases

被引：23

作者：

Li, MH

Nguyen, HT

Sigaud, G

机构：

[1] Centre de Recherche Paul Pascal, Schweitzer, Pessac, 33600, Avenue A

来源：

LIQUID CRYSTALS | 1996年 / 20卷 / 03期

关键词：

D O I：

10.1080/02678299608032045

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new phase sequence: twist grain boundary S, phase to blue phases was observed in a chiral compound (R)- or (S)-1-methylheptyl 3'-fluoro-4'-(3 ''-fluoro-4 ''-octadecyloxybenzoyloxy)tolan-4-carboxylate. It is the first time that blue phases have been found to occur above the TGBA phase in the absence of a cholesteric phase. These phases were characterized by microscopic observation, differential scanning calorimetry, the contact method and study of the racemic system.

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页码：361 / 365

页数：5

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