Diffusion in polymers below the glass transition temperature: Comparison of two approaches based on free volume concepts

被引：0
|
作者：
Narayan Ramesh
J. L. Duda
机构：
[1] Pennsylvania State University,Center for the Study of Polymer Solvent Systems, Department of Chemical Engineering
来源：
Korean Journal of Chemical Engineering | 2000年 / 17卷
关键词：
Diffusivity; Self-Diffusion Coefficient; Polymers; Glass Transition; Free-Volume;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Theories based on free-volume concepts have been developed to characterize the self and mutual diffusion coefficients of low molecular weight penetrants in rubbery and glassy polymer-solvent systems. These theories are applicable over a wide range of temperatures and concentrations. In this paper, two alternative freevolume based approaches used to evaluate the solvent self-diffusion in glassy polymer-solvent systems are compared in terms of their differences and applicability
引用
收藏
页码：310 / 317
页数：7
相关论文
共 50 条
12345