Non-symmetric viscoelasticity of anisotropic polymer liquids

被引：13
|
作者：
Volkov, VS [1 ]
Kulichikhin, VG [1 ]
机构：
[1] Russian Acad Sci, Inst Petrochem Synth, Moscow 117912, Russia
来源：
RHEOLOGICA ACTA | 2000年 / 39卷 / 04期
关键词：
macroscopic theory; polymer nematics; non-symmetric viscoelasticity; relaxation anisotropy; complex viscosities; non-linear sheer viscosities;
D O I：
10.1007/s003970000070
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The liquid crystalline (LC) polymers are considered as anisotropic viscoelastic liquids with nonsymmetric stresses. A simple constitutive equation for nematic polymers describing the coupled relaxation of symmetric and antisymmetric parts of the stress tensor is formulated. For illustration of non-symmetric anisotropic viscoelasticity, the simplest viscometric flows of polymeric nematics in the magnetic field are considered. The frequency and shear rate dependencies of extended set of Miesowicz viscosities are predicted.
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页码：360 / 370
页数：11
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