Block-Stereoblock Copolymers of Poly( ε-Caprolactone) and Poly(Lactic Acid).

Block-Stereoblock Copolymers of Poly(ε-Caprolactone) and Poly(Lactic Acid). Angew Chem Int Ed Engl. 2018 Apr 17;: Authors: Rosen T, Goldberg I, Navarra W, Venditto V, Kol M Abstract A magnesium complex of the type {ONNN}Mg-HMDS wherein {ONNN} is a sequential tetradentate monoanionic ligand is introduced. In the presence of an alcohol initiator this complex catalyzes the living and immortal homopolymerization of the lactide enantiomers and ε-caprolactone at room-temperature with exceptionally high activities, as well as the precise block copolymerization of these monomers in a one-pot synthesis by sequential monomer addition. Copolymers of unprecedented microstructures such as the PCL-b-PLLA-b-PDLA and PDLA-b-PLLA-b-PCL-b-PLLA-b-PDLA block-stereoblock microstructures that feature unique thermal properties are readily accessed. PMID: 29665211 [PubMed - as supplied by publisher]
Source: Angewandte Chemie - Category: Chemistry Authors: Tags: Angew Chem Int Ed Engl Source Type: research