Understanding the Effect of M(III) Choice in Heterodinuclear Polymerization Catalysts.

ABSTRACT: The ring-opening copolymerization (ROCOP) of epoxides with CO₂ or anhydrides is a promising strategy to produce sustainable polycarbonates and polyesters. Currently, most catalysts are reliant on scarce and expensive cobalt as the active center, while more abundant aluminum and iron catalysts often suffer from lower activities. Here, two novel heterodinuclear catalysts, featuring abundant Al(III), Fe(III), and K(I) active centers, are synthesized, and their performance in the polymerization of four different monomer combinations is compared to that of their Co(III) analogue. The novel Al(III)K(I) catalyst exhibits outstanding activities in the cyclohexane oxide (CHO)/CO₂ ROCOP, and at 1 bar CO₂ pressure it is the fastest aluminum-based catalyst reported to

SUBMITTER: Eisenhardt KHS 

PROVIDER: S-EPMC11632767 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature