Heat Stabilizers: In addition to the free-radical chain degradation described for polyolefins, another type of degradation (dehydrohalogenation) also occurs with chlorine-containing polymers such as PVC.

• 热稳定剂：除所描述的发生在聚烯烃上的自由基链降解外,另一种类型的降解(脱卤化氢)也会发生在含氯的聚合物如聚氯乙烯上(pvc)。