Details

Autor(en) / Beteiligte

• Sivasubramanian, G.
• Sivasamy, P.
• Vijayakumar, C.T.
• Fink, J.K.

Titel

A study of the thermal degradation behaviour of polyesters based on hexolic anhydride

Ist Teil von

• Polymer degradation and stability, 1988, Vol.21 (2), p.151-163

Ort / Verlag

Oxford: Elsevier Ltd

Erscheinungsjahr

1988

Link zum Volltext

Quelle

Elsevier ScienceDirect Journals Complete

Beschreibungen/Notizen

• The degradation behaviour of unsaturated polyesters containing hexolic anhydride has been studied. Pyrolysis experiments were performed using the TVA technique and the analysis of the products of pyrolysis was carried out utilising the gas chromatography-mass spectrometry technique. The formation of the various degradation products is discussed in the light of previously established mechanisms for polyester degradation. Special attention is devoted to a comparison of the present results on hexolic anhydride based polyesters with previously studied HET-acid based polyesters, which have similar structural characteristics in the chlorinated part of the molecule. The major degradation product from the hexolic moiety is hexolic anhydride. The degradation products resulting from the 1,4-butanediol components are similar for both hexolic- and HET-based polyesters. Contrary to the HET-acid based systems, the hexolic based polyesters yield considerably smaller quantities of hexachlorocyclopentadiene, which originates from the retro-Diels-Alder reaction.