Single-site cobalt and zinc catalysts for the ring-opening polymerization of lactide

Paul Marin (1) , M.J.-L. Tschan (1) , P. Haquette (1) , Thierry Roisnel (2) , Iker Del rosal (3) , Laurent Maron (3) , C.M. Thomas (1)

1 IRCP - Institut de Recherche de Chimie Paris
2 ISCR - Institut des Sciences Chimiques de Rennes
3 IRSAMC - Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes

Novel zinc(II) and cobalt(II) complexes containing tripodal mono(phenolate) ligands have been synthesized and characterized. The resulting mononuclear complexes act as efficient initiators in the polymerization of rac-lactide to provide the corresponding biodegradable poly(lactic acid). Most of these polymerizations proceeded in a controlled fashion, giving polymers with narrow polydispersities and experimental molecular weights in good agreement with calculated values. © 2019 Elsevier Ltd

Keywords: Cobalt; Homogeneous Catalysis; Poly(lactic acid); Zinc

Domains: Chemical Sciences

Paul Marin, M.J.-L. Tschan, P. Haquette, Thierry Roisnel, Iker Del rosal, et al.. Single-site cobalt and zinc catalysts for the ring-opening polymerization of lactide. European Polymer Journal, 2019, 120, pp.109208. ⟨10.1016/j.eurpolymj.2019.08.035⟩. ⟨hal-02310251⟩