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
收藏
页码：7191 / 7195
页数：5
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