Visible Light Catalyzed Step-Growth Polymerization through Mizoroki-Heck Coupling Reaction

被引：9
|
作者：
He, Liting [1 ]
Jia, Chunbo [1 ]
Zhang, Yunjia [1 ]
He, Junpo [1 ]
机构：
[1] Fudan Univ, Dept Macromol Sci, State Key Lab Mol Engn Polymers, Shanghai 200433, Peoples R China
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2020年 / 41卷 / 07期
基金：
美国国家科学基金会;
关键词：
Mizoroki-Heck coupling reaction; step-growth polymerization; visible light; RING-OPENING POLYMERIZATION; THIOL-ENE; TETRAALKYLAMMONIUM SALTS; RAFT POLYMERIZATION; DIBLOCK COPOLYMERS; ALKYL-HALIDES; ARYL HALIDES; PALLADIUM; POLYMERS; HYDROGEN;
D O I：
10.1002/marc.201900640
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The results of polymer synthesis via visible light (blue light lambda = 465 nm) and a Pd-catalyzed Mizoroki-Heck coupling reaction at ambient temperature are reported. The kinetic study demonstrates that the polymerization rate is faster under light irradiation than that in the dark, affording larger molecular weight of polymer product in the former. A mechanistic study using F-19 NMR indicates that light can activate the oxidative addition step, increasing the rate of formation of the oxidative addition intermediate. The present work not only reveals a new mechanism of light's effect on Mizoroki-Heck coupling reaction in the absence of sensitizer, but also represents the first example of its application in step-growth polymerization.
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页数：6
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