Electric-Field-Induced Reversible Viscosity Change in a Columnar Liquid Crystal

被引：12

作者：

Kaneko, Kosuke ^{[1
,2
,3
]}

Mandai, Atsuhiko ^{[1
]}

Heinrich, Benoit ^{[2
]}

Donnio, Bertrand ^{[2
]}

Hanasaki, Tomonori ^{[1
]}

机构：

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

[2] Univ Strasbourg, Inst Phys & Chim Mat Strasbourg, CNRS, UMR 7504, F-67034 Strasbourg 2, France

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

来源：

CHEMPHYSCHEM | 2010年 / 11卷 / 17期

关键词：

columnar phase; electric fields; liquid crystals; materials science; rheology; RHEOLOGICAL PROPERTIES; CALAMITIC MESOGENS; MOLECULAR-WEIGHT; POLYSILOXANE; POLYMERS; BEHAVIOR; ORDER; GELS;

D O I：

10.1002/cphc.201000587

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：

Call the doctor! The electro-rheological (ER) effect of a silsesquioxane liquid crystal (LC) is investigated. The spherical shape of the LC plays a key role in avoiding the entanglement between neighboring molecules, which leads to a quick response to an applied electric field. The silsesquioxane LC shows a large ER response to an applied electric field in which the generated shear stress is more than 50 kPa (see picture). © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：3596 / 3598

页数：3

共 22 条

[1] Effect of molecular weight on the electrorheological behavior of side-chain liquid crystal polymers in nematic solvents [J].