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

被引：48

作者：

Rosen, Tomer ^{[1
]}

Goldberg, Israel ^{[1
]}

Navarra, Wanda ^{[2
,3
]}

Venditto, Vincenzo ^{[2
,3
]}

Kol, Moshe ^{[1
]}

机构：

[1] Tel Aviv Univ, Sch Chem, IL-6997801 Tel Aviv, Israel

[2] Univ Salerno, Dept Chem & Biol A Zambelli, I-84084 Salerno, Italy

[3] Univ Salerno, INSTM Res Unit, I-84084 Salerno, Italy

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2018年 / 57卷 / 24期

基金：

以色列科学基金会;

关键词：

block copolymers; living polymerization; magnesium; poly(lactic acid); poly(E-caprolactone); RING-OPENING POLYMERIZATION; EPSILON-CAPROLACTONE; TRIBLOCK COPOLYMERS; LACTIDE; POLYLACTIDES; CATALYSTS; STEREOCOMPLEXES; ISOPROPOXIDE; L; L-LACTIDE; INITIATORS;

D O I：

10.1002/anie.201803063

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 E-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.

引用

页码：7191 / 7195

页数：5

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