Thermal degradation of polyvinyl chloride

The thermal degradation of a sort of polyvinyl chloride was investigated. C omplex processes for polyvinyl chloride degradation were evidenced. The kin etic analysis of dehydrochlorination and of subsequent processes was carrie d out. A change of mechanism was detected when dehydrochlorination goes to completion. The values of non-isothermal kinetic parameters determined by v arious methods are in a satisfactory agreement. The obtained results allowe d some clarifications concerning the thermal degradation steps.