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Advances in Condensed Matter Physics
Volume 2015, Article ID 345810, 10 pages
Research Article

Effects of the Junction Functionality and Chain Entanglements in Chemomechanical Behavior of Polyelectrolyte Gels

1College of Civil Engineering and Architecture, Hebei University, Baoding 071002, China
2Department of Engineering Mechanics, Beijing University of Technology, Beijing 100124, China
3School of Computing, Engineering and Mathematics, University of Western Sydney, Penrith, NSW 2751, Australia

Received 14 October 2014; Revised 30 January 2015; Accepted 8 February 2015

Academic Editor: Yurij Holovatch

Copyright © 2015 Lianhua Ma et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


By considering the functionality of junctions and entanglements of polymer chains for polyelectrolyte gels, a new free energy density function is presented via combining Edwards-Vilgis slip-link model with Flory-Huggins theory. On this basis, the effects of the functionality of network junctions and entanglements of polymer chains are systematically analyzed for free swelling of a cubic polyelectrolyte gel and constrained swelling of a blanket layer of the gel. Analytical results show that the functionality of junctions and chains entanglements plays an important role in the coupled chemomechanical deformation of polyelectrolyte gels.