Related Experiment Video
Updated: Jul 2, 2026

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
Published on: December 16, 2022
Poly(ethylene glycol) enhanced dehydrochlorination of poly(vinyl chloride)
Yan-Hui Wu1, Qian Zhou, Tao Zhao
1Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, Sichuan University, Chengdu 610064, China.
Abstract:
Poly(ethylene glycol) (PEG), an environment-friendly reaction medium, has been adopted to accelerate the dehydrochlorination of poly(vinyl chloride) (PVC). Experimental results demonstrated that at 210 degrees C for 1h the dechlorination degree was as high as 74.2% for PVC/PEG, while for PVC only 50.0%. Moreover, from thermogravimetric analysis, it was found that for PVC/PEG the decomposition of PVC corresponding to the dehydrochlorination stage shifted to lower temperatures compared with that of pure PVC, suggesting some interactions exist between PEG and PVC that caused the faster dehydrochlorination rate. In addition, during this process, no waste byproducts such as KCl have been produced, and satisfactory recyclability of PEG (10 cycles) has been obtained.
More Related Videos
Related Concept Videos
Radical Chain-Growth Polymerization: Mechanism
Electrophilic Addition to Alkynes: Hydrohalogenation
Anionic Chain-Growth Polymerization: Overview
Free-Radical Chain Reaction and Polymerization of Alkenes
Acid-Catalyzed Dehydration of Alcohols to Alkenes
Microbial Bioremediation of Plastics

