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

页码：310 / 317

页数：7

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