Electrorheological Effect and Electro-Optical Properties of Side-on Liquid Crystalline Polysiloxane in a Nematic Solvent

被引：7

作者：

Kaneko, Kosuke ^{[1
,2
]}

Oto, Kodai ^{[1
]}

Kawai, Toshiaki ^{[1
]}

Choi, Hyunseok ^{[2
]}

Kikuchi, Hirotsugu ^{[2
]}

Nakamura, Naotake ^{[1
]}

机构：

[1] Ritsumeikan Univ, Dept Appl Chem, Coll Life Sci, Kusatsu, Shiga 5258577, Japan

[2] Kyushu Univ, Inst Mat Chem & Engn, Kasuga, Fukuoka 8168580, Japan

来源：

CHEMPHYSCHEM | 2013年 / 14卷 / 12期

基金：

日本科学技术振兴机构; 日本学术振兴会;

关键词：

electro-optical properties; electrorheological effect; liquid crystals; polysiloxane; side-on attachment; RHEOLOGICAL PROPERTIES; COMPOSITE SYSTEMS; PHASE-TRANSITION; FLUORINE-ATOMS; POLYMERS; BEHAVIOR; CONFORMATION; DEPENDENCE; BACKBONE;

D O I：

10.1002/cphc.201300093

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 electrorheological (ER) effect and the electro-optical properties of a side-on liquid crystalline polysiloxane (PS) are investigated. A large ER effect is observed and the response to the shear stress of neat PS in the nematic phase is shown to be affected by the shear rate. PS is also mixed with a low-molar nematic liquid crystal (5CB) in order to improve the response behavior to the applied electric field. The rheological properties of such mixtures are highly dependent on the concentration of 5CB. The composites respond faster to the applied electric field and have improved electro-optical properties. This study offers a new perspective on the development of liquid crystal materials for the ER effect.

引用

页码：2704 / 2710

页数：7

共 29 条

[1] Rheology and shear orientation of a nematic liquid crystalline side-group polymer with laterally attached mesogenic units [J].