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Degradation kinetics of poly(vinyl acetate) in the presence of aluminum chloride

Chattopadhyay, Sujay and Madras, Giridhar (2001) Degradation kinetics of poly(vinyl acetate) in the presence of aluminum chloride. In: Polymer Degradation and Stability, 73 (1). pp. 83-86.

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Abstract

The thermal degradation of poly(vinyl acetate) (PVAc) was carried out in the presence of various concentrations of aluminum chloride $(AlCl_3)$ at different temperatures. The time evolution of molecular weight distributions (MWDs) was determined by gel permeation chromatography. A continuous distribution kinetic model was used to evaluate the degradation rate coefficient assuming the reaction is first order in polymer concentration and that the decomposition of $AlCl_3$ is first order. Experimental data indicated that the presence of $AlCl_3$ greatly enhanced the rate of degradation of PVAc. The activation energy of the degradation rate coefficient for PVAc in presence of aluminium chloride was 14.2 kcal/mol.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier.
Keywords: Thermal degradation;Poly(vinyl acetate);Aluminum chloride; Catalytic degradation;Continuous distribution kinetics
Department/Centre: Division of Mechanical Sciences > Chemical Engineering
Date Deposited: 02 Apr 2007
Last Modified: 19 Sep 2010 04:36
URI: http://eprints.iisc.ernet.in/id/eprint/10539

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