Electrical Actuation of Cholesteric Liquid Crystal Gels

被引：24

作者：

Fuchigami, Yuuta ^{[1
]}

Takigawa, Toshikazu ^{[1
]}

Urayama, Kenji ^{[2
]}

机构：

[1] Kyoto Univ, Dept Chem Mat, Nishikyo Ku, Kyoto 6158510, Japan

[2] Kyoto Inst Technol, Dept Macromol Sci & Engn, Sakyo Ku, Kyoto 6068585, Japan

来源：

ACS MACRO LETTERS | 2014年 / 3卷 / 08期

关键词：

NEMATIC ELASTOMERS; DEFORMATION; REFLECTION;

D O I：

10.1021/mz5003382

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We demonstrate that the cholesteric liquid crystal (CLC) gels with a global helical variation in their orientation exhibit the pronounced electro-optical and electromechanical effects under an unconstrained geometry. A sufficiently high electric field imposed along the helical axis drives a finite elongation exceeding 30% along the field axis, as well as a finite redshift of the selective reflection band which is opposite to the blueshift often observed for the conventional CLCs and the in situ polymer stabilized CLCs under an electric field.

引用

页码：813 / 818

页数：6

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