Heterometallic Li/Zn, Li/Al and Li/In catalysts for <i>rac</i>-lactide ring-opening polymerisation: "ate" or "non-ate" pathways?

ABSTRACT: The ring-opening polymerisation (ROP) of lactide (LA) is an attractive route to produce aliphatic polyesters, with bimetallic catalysts displaying some of the highest catalyst activities to date. While a range of heterometallic catalysts have been reported to outperform their homometallic analogues, the origins of cooperativity are not always well understood. Previous studies indicate that the reaction pathways may differ for different metal heterocombinations, especially when an alkali metal is combined with zinc or aluminium. Here, a series of homo- and hetero-metallic complexes combining Li with Al, Zn or In, supported by an asymmetric methyl-ester substituted salen ligand (H ₂ L), have been synthesised and characterised by single-crystal X-ray diffractio

SUBMITTER: Piyawongsiri T 

PROVIDER: S-EPMC12407087 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature