Mechanisms of thermo-oxidative degradatio of modified polybutylene terephthalate

摘要

The most investigations in the area of thermal and thermo-xoidative degradation of polyesters relate to polythylene terephthalate (PETP), a polymer based on ethylene glycol and terephthalic acid, articles of which are widely used. PETP, the molecular chain of which contains, along with aliphatic sections (-CH_2-CH_2-), benzene rings, is comparatively heat resistant; appreciable oxidation of this polyester occurs at temperatures above 523 K and proceeds parallel to processes of purely thermal decomposition [1].