Viscoelasticity of tightly entangled solutions of semiflexible polymers

被引：179

作者：

Morse, DC ^{[1
]}

机构：

[1] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA

来源：

PHYSICAL REVIEW E | 1998年 / 58卷 / 02期

关键词：

D O I：

10.1103/PhysRevE.58.R1237

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A molecular model is introduced to describe the linear viscoelasticity of tightly entangled solutions of semiflexible polymers. An expression for the stress of a solution of wormlike chains is derived, and a tube model is used to describe the effects of entanglement. Consideration of the Brownian dynamics of the polymer within its tube yields a dynamic modulus G*(omega)proportional to(i omega)(3/4) at high; frequencies, in agreement with the results of recent :microrheology experiments-on actin solutions.

引用

页码：R1237 / R1240

页数：4

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