title: Ring-opening polymerization with Zn(C6F5)2-based Lewis pairs: original and efficient approach to cyclic polyesters.
abstract: Dual systems combining Zn(C6F5)2 with an organic base (an amine or a phosphine) promote the controlled ring-opening polymerization of lactide and ε-caprolactone. The Lewis pairs cooperate to activate the monomers, affording well-defined high molecular weight cyclic polyesters. Efficient chain-extension gives access to cyclic block copolymers.
authors.affiliation: Laboratoire Hétérochimie Fondamentale et Appliquée, UMR CNRS 5069, Université de Toulouse , F-31062 Toulouse, France.
authors.forename: Estefanía
authors.initials: E
authors.lastname: Piedra-Arroni
authors.forename: Catherine
authors.initials: C
authors.lastname: Ladavière
authors.forename: Abderrahmane
authors.initials: A
authors.lastname: Amgoune
authors.forename: Didier
authors.initials: D
authors.lastname: Bourissou