Rotational viscosities of Gay-Berne mesogens
Rotational viscosities of Gay-Berne mesogens
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Gay-Berne 介晶的旋转粘度
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
M. Wilson
中科院分区：
文献类型：
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作者：
A. Cuetos;J. Ilnytskyi;M. Wilson
针对向列相中各种状态点的三个 Gay-Berne 模型计算了旋转粘度 γ1。结果具有很强的密度依赖性，γ1 随着密度的增加而增加。远离清亮点，γ1 的温度依赖性可以通过简单的类阿累尼乌斯行为来描述。 γ1 值和阿伦尼乌斯活化能与真实介晶的比较表明，当用作真实介晶系统的模型时，Gay-Beme 势存在许多问题。
Rotational viscosities γ1 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 γ1 increasing with increasing density. Away from the clearing point, the temperature dependence of γ1 was described by simple Arrhenius-like behaviour. A comparison of the values of γ1 and the Arrhenius activation energies with real mesogens pointed to a number of problems with the Gay-Beme potential, when used as a model for real mesogenic systems.