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The preparation and characterization of chitosan/poly (vinyl alcohol) blended films : mechanical, thermal and surface investigations

El Sayed Nasef, Mohamed Mahmoud and E. A., El-Hefian and A. H., Yahaya (2011) The preparation and characterization of chitosan/poly (vinyl alcohol) blended films : mechanical, thermal and surface investigations. E-Journal of Chemistry, 8 . pp. 91-96. ISSN 0973-4945

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Official URL: http://dx.doi.org/10.1155/2011/969062

Abstract

In this study, blends of chitosan (CS) and polyvinyl alcohol (PVA) (CS/PVA) having various proportions were prepared and characterized by universal mechanical tester, the differential scanning calorimetry (DSC) and contact angle measurements. Studying the mechanical properties of the films showed that blending improved the tensile strength, which increased with increasing PVA content up to 40% while the elongation% at break of the blends was decreased compared to that of the pure components. The obtained results of DSC suggested that some interaction between chitosan and PVA mostly took place. Static water contact angle measurements showed an improvement in the wettability of the obtained films.

Item Type:Article
Uncontrolled Keywords:chitosan, poly(vinyl alcohol), blended films, wettability
Subjects:Q Science > QD Chemistry
ID Code:26584
Deposited By: Liza Porijo
Deposited On:18 Jul 2012 03:25
Last Modified:07 Jan 2014 02:53

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