Fig. 1: Reversible copolymerization of chloral and cyclic anhydride to yield polyesters that are capable of CRM.
From: Chemically recyclable polyvinyl chloride-like plastics

a Et3N and InBr3 are used as the catalyst for the anionic and cationic copolymerization, respectively, and Sn(Oct)2 is used as a depolymerization catalyst. b The synthesis route of chloral and cyclic anhydride in industry. c Compare some of the properties of our polymers with commercial plastics of PVC and polystyrene.