Free-evolution kinetics in a high-swelling polymeric hydrogel

被引：25

作者：

Engelsberg, M. ^{[1
]}

Barros, Wilson, Jr. ^{[1
]}

机构：

[1] Univ Fed Pernambuco, Dept Fis, BR-50670901 Recife, PE, Brazil

来源：

PHYSICAL REVIEW E | 2013年 / 88卷 / 06期

关键词：

GELS; PERMEABILITY; MECHANICS; NETWORKS; STRESS;

D O I：

10.1103/PhysRevE.88.062602

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We employ nuclear magnetic resonance microimaging to study the kinetics of a high-swelling ionic polymer gel. This includes the time evolution of the sphere diameter and also the evolution of the swollen-unswollen boundary. The experimental results for spherical ionic polyacrylamide gels are compared with the predictions of a nonlinear poroelastic theory by numerically solving the equations for the evolution.

引用

页数：7

共 36 条

[1]

[Anonymous], 2007, Numerical Recipes

[2] Surface pattern formation in a swelling gel [J].

Barros, Wilson, Jr. ;

de Azevedo, Eduardo N. ;

Engelsberg, Mario .

SOFT MATTER, 2012, 8 (32) :8511-8516

[3] General theory of three-dimensional consolidation [J].

Biot, MA .

JOURNAL OF APPLIED PHYSICS, 1941, 12 (02) :155-164

[4] Swelling kinetics of polymer gels: comparison of linear and nonlinear theories [J].

Bouklas, Nikolaos ;

Huang, Rui .

SOFT MATTER, 2012, 8 (31) :8194-8203

[5]

Callaghan P. T., 1991, Principles of Nuclear Magnetic Resonance Microscopy

[6]

Crank J., 1956, The mathematics of diffusion

[7]

de Gennes P., 1988, SCALING CONCEPTS POL

[8] Shape Transition in Artificial Tumors: From Smooth Buckles to Singular Creases [J].

Dervaux, Julien ;

Couder, Yves ;

Guedeau-Boudeville, Marie-Alice ;

Ben Amar, Martine .

PHYSICAL REVIEW LETTERS, 2011, 107 (01)

[9] LAGRANGIAN THEORY OF POLYMER-SOLUTIONS AT INTERMEDIATE CONCENTRATIONS [J].

DESCLOIZEAUX, J .

JOURNAL DE PHYSIQUE, 1975, 36 (04) :281-291

[10]

Flory P J., PRINCIPLES POLYM CHE

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