External Regulation of Cobalt-Catalyzed Cycloaddition Polymerization with Visible Light

被引：28

作者：

Ravetz, Benjamin D. ^{[1
]}

Ruhl, Kyle E. ^{[1
,2
]}

Rovis, Tomislav ^{[1
,2
]}

机构：

[1] Columbia Univ, Dept Chem, New York, NY 10027 USA

[2] Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA

来源：

ACS CATALYSIS | 2018年 / 8卷 / 06期

基金：

美国国家科学基金会;

关键词：

block copolymerization; chain-growth; cobalt catalysis; cycloaddition polymerization; photocontrol; TRANSFER POLYCONDENSATION; RADICAL POLYMERIZATION; MECHANISM; CYCLOTRIMERIZATION;

D O I：

10.1021/acscatal.8b01431

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Coordination polymerizations have been extensively used in commercial plastic and rubber industries since 1956, because of their ability to produce polymeric material with well-defined structure, tunable molecular weight (M-n), narrow dispersity (D), and useful chain ends. Typically, these processes are initiated by chemical reagents that sacrifice temporal and spatial control of catalysis. Recent advances in photoredox catalysis have sparked an emergence of photocontrolled ionic and radical polymerizations; meanwhile, photocontrolled coordination polymerizations remain relatively unexplored. Herein, we report a light-regulated cobalt-catalyzed [2+2+2] cycloaddition polymerization. Using this methodology, block copolymers are generated while regulating their M-n with visible light.

引用

收藏

页码：5323 / 5327

页数：9

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