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6635112 
Journal Article 
Pyrolysis-gas-chromatographic study of a series of polyester thermosets 
Evans, SJ; Haines, PJ; Skinner, GA; , 
2000 
Yes 
Journal of Analytical and Applied Pyrolysis
ISSN: 0165-2370 
ELSEVIER SCIENCE BV 
AMSTERDAM 
55 
1 
13-28 
English 
WOS:000086334700002 
Thirteen different unsaturated polyester prepolymers have been synthesised in an attempt to establish a relationship between the structures of the commonly used polyesters and the pyrolysis products of their cross-linked polymers. All the polyesters contained maleic anhydride units as the unsaturated sites and all were cured using styrene as the cross-linking monomer. The variation in structure involved either the glycol component or the aromatic acid. The cross-linked polyesters were pyrolysed at 600 degrees C and the products separated and identified using gas chromatography and gas chromatography-mass spectrometry. Many products were identified as arising from either the styrene cross-links or the polyester chains. The presence of cinnamate esters confirmed that degradation occurred across both distinct parts of the polymer network. The identity of some other products, particularly the phthalate esters, suggested that more than one degradation mechanism was occurring. (C) 2000 Elsevier Science B.V. All rights reserved.