Abstract
The thermooxidative degradation of poly(vinyl chloride)/chlorinated polyethylene blends of different compositions was investigated by means of dynamic thermogravimetry in flowing atmosphere of synthetic air in temperature range 50–650 °C. Kinetic analysis was applied to the first basic degradation step (up to 400 °C) where the main degradation processes were the dehydrochlorination of PVC and CPE. For calculation of the apparent activation energy and apparent preexponential factor three kinetic methods were compared: integral Kissinger method, integral isoconversional Kissinger–Akahira–Sunose method and differential isoconversional Friedman method. The existence of the true or false compensation effect is discussed.
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