Immortal Ring-Opening Copolymerization of Epoxide and Isocyanate Using a Commercial Manganese Catalyst

被引：13

作者：

Hu, Chenyang ^{[1
]}

Chen, Xing ^{[2
]}

Niu, Mingxin ^{[1
,3
]}

Zhang, Qi ^{[1
]}

Duan, Ranlong ^{[1
]}

Pang, Xuan ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Polymer Ecomat, Changchun 130022, Peoples R China

[2] Changchun Univ Technol, Sch Chem Engn, Changchun 130012, Peoples R China

[3] Univ Sci & Technol China, Hefei 230026, Peoples R China

来源：

MACROMOLECULES | 2022年 / 55卷 / 02期

基金：

中国国家自然科学基金;

关键词：

POLYMERIZATION; POLYMERS; LACTIDE; CO2;

D O I：

10.1021/acs.macromol.1c02331

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Immortal polymerization is a unique strategy for ring-opening copolymerizations (ROCOP) with epoxide monomers. In conjunction with various chain transfer agents (CTAs), the first immortal ROCOP of a typical epoxide (propylene oxide, PO) and isocyanate (p-tosyl isocyanate, TSI) using a commercial manganese catalyst is reported. In addition to precise molecularweight control, this approach afforded novel polyurethane (PU) with unprecedented functionality, topology, and pinpoint sequence with secondary carbamyl linkage. In addition, a block copolymer of poly(lactic acid) (PLA) with PU was synthesized via a sequential addition strategy, which offered an attractive access to expanding the scope of copolymers derived from aliphatic polyesters.

引用

页码：652 / 657

页数：6

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