Abstract
Abstract Kinetics of thermal decomposition of various heterophasic ethylene-propylene copolymers in the temperature range 215-432°C by thermogravimetry (TG) and 150-180°C by differential scanning calorimetry (DSC), where volatile formation was negligible, was investigated and compared with isotactic polypropylene. Under nitrogen flux the activation energy for decomposition was in the range of 71-89 kcal-mol−1 in TG and 42-64 kcal-mol−1 in DSC. The thermal stability depends on the copolymer composition. The effect of heating rate on DSC thermograms has been studied.
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