The Thermal Degradation of Acrylonitrile-butadiene-styrene terpolymei as Studied by TGA/FTIR

Document Type

Article

Language

eng

Publication Date

1995

Publisher

Elsevier

Source Publication

Polymer Degradation and Stability

Source ISSN

0141-3910

Abstract

The thermal degradation of acrylonitrile-butadiene-styrene (ABS) terpolymer has been studied by TGA/FTIR. The degradation of ABS is compared with that of polystyrene, polybutadiene, polyacrylonitrile (PAN), and styrene-acrylonitrile (SAN) copolymer. A small amount of acrylonitrile monomer is eliminated from PAN, SAN, and ABS. The grafting of butadiene on to SAN stabilizes the butadiene structure, since the evolution of butadiene begins 50 °C higher than in the homopolymer. The evolution of aromatics begins about 20 °C lower in ABS than in SAN, so the presence of the butadiene destabilizes SAN. The evolution of acrylonitrile begins at essentially the same temperature in ABS as in SAN. There are some significant effects on the degradation produced by grafting SAN onto polybutadiene but the degradation may be understood by considering the degradation of its components.

Comments

Polymer Degradation and Stability, Vol 47, No. 2 (1995): 217-221. DOI.

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