Rotational viscosities of Gay-Berne mesogens

被引：22

作者：

Cuetos, A ^{[1
]}

Ilnytskyi, JM ^{[1
]}

Wilson, MR ^{[1
]}

机构：

[1] Univ Durham, Dept Chem, Durham DH1 3LE, England

来源：

MOLECULAR PHYSICS | 2002年 / 100卷 / 24期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1080/0026897021000028410

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：

Rotational viscosities gamma(1) are calculated for three Gay-Berne models for a wide range of state points in the nematic phase. There was a strong density dependence in the results, with gamma(1) increasing with increasing density. Away from the clearing point, the temperature dependence of gamma(1) was described by simple Arrhenius-like behaviour. A comparison of the values of gamma(1) and the Arrhenius activation energies with real mesogens pointed to a number of problems with the Gay-Berne potential, when used as a model for real mesogenic systems.

引用

页码：3839 / 3845

页数：7

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