Effect of pH, Concentration and Solvents on the Ultrasonic Degradation of Poly(vinyl Alcohol)

Vijayalakshmi, SP and Madras, Giridhar (2006) Effect of pH, Concentration and Solvents on the Ultrasonic Degradation of Poly(vinyl Alcohol). In: Journal of Applied Polymer Science, 100 (6). pp. 4888-4892.

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Abstract

The ultrasonic degradation of poly(vinyl alcohol) was investigated at different pHs of solvent, in different water/solvent binary mixtures and at different polymer concentrations. Samples were analyzed by gel permeation chromatography. The degradation rate coefficients were determined by applying a continuous distribution model. Higher degradation rate was obtained at extremes of pH, in better solvents and at lower polymer concentration. The results obtained have been explained and discussed.

Item Type:	Journal Article
Additional Information:	Copyright of this article belongs to John Wiley & Sons, Inc.
Keywords:	Degradation;Water-soluble polymers;Molecular weight distributions;Ultrasound
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering
Date Deposited:	06 Feb 2007
Last Modified:	19 Sep 2010 04:34
URI:	http://eprints.iisc.ernet.in/id/eprint/9396

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