Depolymerization of Poly(1,2‐propylene carbonate) via Ring Closing Depolymerization and Methanolysis

The conversion of end-of-life plastics to useful chemicals can contribute a resource-conserving and environmental-benign society. In this regard, we studied the depolymerization via methanolysis poly(1,2-propylene carbonate) using straightforward metal salts as precatalysts. more detail, in presence catalytic amounts Zn(OAc)2 or NaOAc methanol 1,2-propylene carbonate (generated by ring closing depolymerization), 1,2-propanediol dimethyl methanolysis) were obtained beneficial products. Importantly, selectivity for vs. polycarbonate depends on various parameters. Moreover, reaction time is significance, because initial stage process dominant, while further course amount products are increasing decreasing, due methanolysis. Furthermore, was connected with consecutive poly(oxymethylene), that means product acts reagent poly(oxymethylene) generate 4-methyl-1,3-dioxolane suitable compound.