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The South Pacific Journal of Natural and Applied Sciences The South Pacific Journal of Natural and Applied Sciences Society
Research and review papers in the area of science, engineering and mathematics
RESEARCH ARTICLE

Swelling properties of chitosan hydrogels

David R Rohindra, Ashveen V Nand and Jagjit R Khurma

The South Pacific Journal of Natural Science 22(1) 32 - 35
Published: 15 December 2004

Abstract

Chitosan hydrogels were prepared by crosslinking chitosan with glutaraldehyde. The swelling behaviour of the crosslinked and uncross-linked hydrogels was measured by swelling the gels in media of different pH and at different temperatures. The swelling behavior was observed to be dependent on pH, temperature and the degree of crosslinking. The gel films were characterized by Fourier transform Infrared spectroscopy (FT-IR) and Differential Scanning Calorimetry (DSC). The glass transition temperature (Tg) and the amount of free water in the hydrogels decreased with increasing crosslinking in the hydrogels.

Keywords: chitosan, hydrogel, swelling behaviour, thermal properties.

https://doi.org/10.1071/SP04005

© The University of the South Pacific 2004

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