Thermochemical and kinetic studies on the effects of cobalt salicylate on the oxidative degradation of polystyrene

Kishore, K and Nagarajan, R (1982) Thermochemical and kinetic studies on the effects of cobalt salicylate on the oxidative degradation of polystyrene. In: Journal of Thermal Analysis and Calorimetry, 25 (2). pp. 585-592.

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Abstract

The effect of cobalt salicylate on the oxidative degradation and ignition of polystyrene has been studied. It was found that cobalt salicylate sensitizes both the degradation and ignition of polystyrene by facilitating electron-transfer processes in the propagation step. From thermochemical and kinetic studies it was found that the cobalt ion, owing to its ability to exist in variable valence states, promotes electron transfer in the propagation step of polymer degradation, increasing the rate of propagation and consequently the overall rate. Using solid-phase thermal ignition theory, an attempt has been made to explain the sensitization of ignition by the cobalt ion.

Item Type:	Journal Article
Publication:	Journal of Thermal Analysis and Calorimetry
Publisher:	Springer
Additional Information:	Copyright of this article belongs to Springer.
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	06 Nov 2009 12:40
Last Modified:	19 Sep 2010 05:33
URI:	http://eprints.iisc.ac.in/id/eprint/20523

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