Modeling of Moisture Sorption Isotherms of Poly(vinyl alcohol)/Starch Films

Baldev, Raj and Eugene Raj, A. and Madan, P. and Mr., Siddaramaiah (2003) Modeling of Moisture Sorption Isotherms of Poly(vinyl alcohol)/Starch Films. Journal of Applied Polymer Science, 89. pp. 3874-3881.

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Abstract

Studies on the moisture sorption characteristics of poly(vinyl alcohol)/starch blends for water activity (aw) values of 0.1– 0.9 were performed at 27°C. The equilibrium moisture content at different aw values was used to fit different sorption isotherm models proposed in the literature. The ranges of aw applicable for the different sorption isotherms were reported. The model constants of the sorption equations were determined by linear fitting. The value of the coefficient of determination (0.98 � 0.01) confirmed the goodness of fit of the equations studied.

Item Type:	Article
Uncontrolled Keywords:	biodegradable; films; hydrophilic polymers
Subjects:	500 Natural Sciences and Mathematics > 04 Chemistry and Allied Sciences > 27 Polymer Chemistry 600 Technology > 05 Chemical engineering > 04 Fermentation Technology
Divisions:	Fermentation Technology and Bioengineering Food Packaging Technology
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	19 Jun 2009 06:18
Last Modified:	28 Dec 2011 10:10
URI:	http://ir.cftri.res.in/id/eprint/9103

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