Metal catalyzed ring-opening polymerization of benzyl malolactonate: a synthetic access to copolymers of β-benzyl malolactonate and trimethylene carbonate - Université de Rennes Accéder directement au contenu
Article Dans Une Revue Polymer Chemistry Année : 2011

Metal catalyzed ring-opening polymerization of benzyl malolactonate: a synthetic access to copolymers of β-benzyl malolactonate and trimethylene carbonate

Résumé

The "immortal" coordination-insertion ring-opening polymerization of benzyl malolactonate (MLABe) initiated by the two-component catalyst system based on the zinc amide precursor, (BDI)Zn[N(SiMe3)2] (BDI = β-diiminate ligand), and benzyl alcohol (BnOH) acting as a co-initiator and a chain transfer agent proceeds in bulk at 40 °C. Functional telechelic poly(β-benzyl malolactonate)s, H-PMLABe-OBn, are thus obtained. Sequential copolymerization with trimethylene carbonate (TMC) affords block copolymers, PTMC-b-PMLABe, which are alternatively prepared from the chemical coupling of the PMLABe-COOH and PTMC-OH homopolymers. Simultaneous copolymerization of both the lactone and the carbonate monomers offers the PTMC-co-PMLABe random copolymers. The (co)polymers have been characterized by NMR, FT-IR, SEC and DSC analyses. These represent the first examples of β-benzyl malolactonate/carbonate copolymers. More importantly, these (co)polymers could be synthesized free of metallic residues thereby making them suitable as biomedical and pharmaceutical biomaterials.

Domaines

Catalyse
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Dates et versions

hal-00632243 , version 1 (13-10-2011)

Identifiants

Citer

Marion Helou, Guillaume Moriceau, Zhi Wei Huang, Sandrine Cammas-Marion, Sophie M. Guillaume. Metal catalyzed ring-opening polymerization of benzyl malolactonate: a synthetic access to copolymers of β-benzyl malolactonate and trimethylene carbonate. Polymer Chemistry, 2011, 2 (4), pp.840-850. ⟨10.1039/C0PY00368A⟩. ⟨hal-00632243⟩
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