CALCULATION OF THE INTRINSIC-VISCOSITY FOR DILUTE POLYMER-SOLUTIONS UNDERGOING SHEAR-FLOW

被引：2
|
作者：
SCHAUB, B
机构：
[1] Institut für Theoretische Physik III, Universität Düsseldorf, Düsseldorf, D-4000
来源：
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1990年 / 81卷 / 02期
关键词：
D O I：
10.1007/BF01309361
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Starting from a set of coupled Langevin equations describing the dynamics of flexible (Gaussian) polymer chains in the presence of hydrodynamic interactions and undergoing a weak shear flow, the stress tensor is determined using Kramers formula. With the aid of renormalization group techniques the steady state intrinsic viscosity is extracted to O(e{open}) (e{open}≡4-d, d being the spatial dimensionality) and to lowest nontrivial order in the flow strength. Within the preaveraging approximation we find a numerically small effect of shear thinning. © 1990 Springer-Verlag.
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页码：291 / 297
页数：7
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