Table of Contents
Journal of Polymers
Volume 2014 (2014), Article ID 376754, 12 pages
http://dx.doi.org/10.1155/2014/376754
Research Article

New Semi-IPN Hydrogels Based on Cellulose for Biomedical Application

1Polymer Research Laboratory, Department of Chemistry, Government Model Science College, Jabalpur, Madhya Pradesh 482001, India
2Department of Chemistry, Kymore Science College, Kymore, Katni, Madhya Pradesh 483880, India

Received 20 December 2013; Revised 20 February 2014; Accepted 6 March 2014; Published 22 April 2014

Academic Editor: Dirk Kuckling

Copyright © 2014 S. K. Bajpai and M. P. Swarnkar. 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.

Abstract

Cellulose pulp, obtained from a paper industry, has been dissolved in PEG/NaOH system and the resulting solution has been polymerized in the presence of monomer acrylic acid (AA) and crosslinker N,N′ methylene bisacrylamide via free radical polymerization. The Cell/PEG/poly (SA) ternary semi-IPN hydrogel, so prepared, was characterized by FTIR and TG analysis. The dynamic water uptake of various hydrogels, having different compositions, was investigated in the physiological buffer of pH 7.4 at 37°C. The various hydrogels exhibited chain-relaxation controlled swelling behavior. The uptake data was best interpreted by Schott kinetic model. The various diffusion coefficients, that is, initial , average , and late time , were also calculated using the dynamic water uptake data. The hydrogels showed fair pH and salt-dependent swelling behavior.