Polymer Science Faculty Research
Title
Studying Steady Shear Flow Characteristics of Entangled Polymer Solutions with Parallel Mechanical Superposition
Document Type
Article
Publication Date
Summer 2010
Abstract
We probe the nature of steady shear flow of entangled polymer solutions by superimposing either small amplitude oscillatory shear or small step strain and analyzing the resultant mechanic responses. Our results show that (a) polymer dynamics (in terms of stress relaxation) are accelerated relative to the quiescent dynamics in direct proportion to the underlying shear rate and (b) the steady shear is a viscous state where chains are displaced past one another on a time scale of the reciprocal rate, consistent with the idea of convective constraint release.
Volume
43
First Page
5904
Last Page
5908
Recommended Citation
Wang, Shi-Qing, "Studying Steady Shear Flow Characteristics of Entangled Polymer Solutions with Parallel Mechanical Superposition" (2010). Polymer Science Faculty Research. 590.
https://ideaexchange.uakron.edu/polymerscience_ideas/590