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Title
Morphological thermal and rheological characterization of polyvinyl alcohol/chitosan blends
Authors
ELENA PARPARITA CATALINA NATALIA CHEABURU and CORNELIA VASILE
Received
December 21, 2010
Published
Volume 46, Issue 9-10 November-December
Keywords
poly(vinyl alcohol), chitosan, blends, film-forming
Abstract
The present study deals with the preparation of polyvinyl alcohol (PVA)/chitosan (CS) blends with different
compositions. The physico-chemical characterization and compatibility have been studied by means of polarized light
optical microscopy, FT-IR spectroscopy, DSC, DMTA, TG/DTG and rheological measurements. The film-forming
ability of the blends was confirmed by rheological tests, as they showed higher viscosity and improved viscoelastic
properties in comparison with pure PVA. The obtained films were transparent and homogenous with enhanced
mechanical properties and thermal stability.
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