Use of a compensation parameter in the Thermal Decomposition of Copolymers

Somasekharan, KN and Kalpagam, V (1986) Use of a compensation parameter in the Thermal Decomposition of Copolymers. In: Thermochimica Acta, 107 . pp. 379-382.

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Abstract

During the past 25 years, thermal techniques have been widely used to study the kinetics of solid state decomposition reactions. In principle, one should find prodigious data on homopolymers, to facilitate the interpretation of the thermal decomposition behaviour of copolymers. During recent studies on poly(styrene-co-methyl methacrylate), however, it was found that the available data on polystyrene and poly(methy1 methacrylate)was too inconsistent to be used with any level of confidence. Isothermal and nonisothermal experiments are found to yield differing kinetic parameters. Procedural factors, such as the heating rate, sample size,pretreatment of the sample, container shape and atmosphere, are implicated in the widely differing calculated parameters; the range of decomposition studied and the particular form of the equation used for data reduction also have an effect.

Item Type:	Journal Article
Publication:	Thermochimica Acta
Publisher:	Elsevier Science B.V.
Additional Information:	The copyright belongs to Elsevier Science B.V.
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	25 Jun 2008
Last Modified:	19 Sep 2010 04:46
URI:	http://eprints.iisc.ac.in/id/eprint/14451

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