Rotational viscosities of Gay-Berne mesogens

被引：21
|
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
收藏
页码：3839 / 3845
页数：7
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