Gel Dynamics

被引：278

作者：

Doi, Masao ^{[1
]}

机构：

[1] Univ Tokyo, Grad Sch Engn, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2009年 / 78卷 / 05期

关键词：

swelling; squeezing; variational principle; volume transition; elastic effect; VOLUME PHASE-TRANSITION; POLYMER-SOLUTIONS; KINETICS; HYSTERESIS; NETWORKS; STRESS; MODEL;

D O I：

10.1143/JPSJ.78.052001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Continuum mechanical model is proposed for dynamical processes in gels that involve coupling between the elastic deformation and solvent permeation. Basic equations are derived by two methods, by a physical argument, and by a variational principle. The model is then applied to discuss the swelling of gels, in which solvent permeation causes deformation, and the squeezing of gels, in which mechanical force induce solvent permeation. The model is also applied to the dynamics of the volume transition of gels. It is shown that the elasticity of gels creates various unusual features in the phase transition dynamics.

引用

页数：19

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