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E-Journal of Chemistry
Volume 7, Issue 4, Pages 1212-1219

The Preparation and Characterization of Chitosan / Poly (Vinyl Alcohol) Blended Films

Esam A. El-Hefian,1 Mohamed Mahmoud Nasef,2 and Abdul Hamid Yahaya1

1Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur-50603 , Malaysia
2Chemical Engineering Department, Faculty of Chemical and Natural Resources Engineering, Universiti Teknologi Malaysia, UTM Skudai-81310, Johor, Malaysia

Received 5 December 2009; Accepted 2 February 2010

Copyright © 2010 Hindawi Publishing Corporation. 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.


In this study, chitosan and PVA were blended at different proportions (considering chitosan as the main component) in solution forms. The chemical structure and the morphology of the obtained blend films were investigated using FTIR and field emission scanning electron microscope (FESEM). The thermal stability of the blend films were also studied using thermal gravimetric analysis (TGA). Our results showed that chitosan and PVA form a compatible blend and their films displayed homogenous and smooth surface properties compared to their individual pure components. The blending of PVA with chitosan at all proportions was found to highly enhance the swelling of the obtained films compared to that of pure chitosan one.