A poly(vinylidene chloride)-based polymer is a good material for food packaging as a barrier for oxygen and steam; however, there are problems related to chemical recycling due to low temperature degradation. To aid in developing a chemical recycling method without the evolution of harmful hydrochloric acid (HCl) and organochlorines, we have proposed a dehydrochlorination process at a low temperature (around 423 K) using zinc(II) oxide (ZnO). ZnO particles dispersed into the polymer matrix were found to be effective for thorough dehydrochlorination because the reaction promoters (zinc chloride [ZnCl₂] and water) spontaneously penetrated the polymer via exothermic reactions. As a result, only a small percentage of chlorine atoms remained with a low amount of HCl. The efficiency of dehydrochlorination was a result of increasing the contact area with ZnO particles using a heat-kneading apparatus. The catalyst ZnCl₂ was involved in the cross-linking reaction to form C–C single bond. Due to exothermic reaction, the scission or isomerization to polyene and aromatics also proceeded over a short period, leading to a microporous carbonaceous solid with a surface area of 5 × 10² m²/g.

聚偏二氯乙烯系聚合物是食品包装的良好材料，可作为氧气和蒸汽的屏障。然而，由于低温降解，存在与化学回收有关的问题。为了帮助开发一种化学循环方法，而不会释放出有害的盐酸（HCl）和有机氯，我们提出了使用氧化锌（IIO）在低温（约423 K）下进行脱氯化氢的方法。由于反应促进剂（氯化锌[ZnCl ₂〔和水〕通过放热反应自发渗透到聚合物中。结果，仅少量的氯原子与少量的HCl一起保留。脱氯化氢的效率是使用热捏合设备增加与ZnO颗粒的接触面积的结果。催化剂ZnCl ₂参与交联反应以形成CC单键。由于放热反应，在短时间内也进行了断裂或异构化为多烯和芳族化合物，产生了表面积为5×10 ²  m ² / g的微孔碳质固体。