Localized Surface Plasmon Resonance Meets Controlled/Living Radical Polymerization: An Adaptable Strategy for Broadband Light-Regulated Macromolecular Synthesis

被引：51

作者：

Jiang, Jingjie ^{[1
]}

Ye, Gang ^{[1
]}

Lorandi, Francesca ^{[2
]}

Liu, Zeyu ^{[1
]}

Liu, Yanqi ^{[1
]}

Hu, Tongyang ^{[1
]}

Chen, Jing ^{[1
]}

Lu, Yuexiang ^{[1
]}

Matyjaszewski, Krzysztof ^{[2
]}

机构：

[1] Tsinghua Univ, Inst Nucl & New Energy Technol, Collaborat Innovat Ctr Adv Nucl Energy Technol, Beijing 100084, Peoples R China

[2] Carnegie Mellon Univ, Dept Chem, 4400 Fifth Ave, Pittsburgh, PA 15213 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2019年 / 58卷 / 35期

基金：

中国国家自然科学基金; 美国国家科学基金会;

关键词：

nanostructures; surface plasmon resonance; photocatalysis; RAFT polymerization; PET-RAFT; PHOTOCATALYTIC ACTIVITY; OXYGEN TOLERANCE; MECHANISM; NANOSTRUCTURES; SEMICONDUCTOR; CONVERSION; DRIVEN; ATRP;

D O I：

10.1002/anie.201906194

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The photophysical process of localized surface plasmon resonance (LSPR) is, for the first time, exploited for broadband photon harvesting in photo-regulated controlled/living radical polymerization. Efficient macromolecular synthesis was achieved under illumination with light wavelengths extending from the visible to the near-infrared regions. Plasmonic Ag nanostructures were in situ generated on Ag3PO4 photocatalysts in a reversible addition-fragmentation chain transfer (RAFT) system, thereby promoting polymerization of various monomers following a LSPR-mediated electron transfer mechanism. Owing to the LSPR-enhanced broadband photon harvesting, high monomer conversion (>99 %) was achieved under natural sunlight within 0.8 h. The deep penetration of NIR light enabled successful polymerization with reaction vessels screened by opaque barriers. Moreover, by trapping active oxygen species generated in the photocatalytic process, polymerization could be implemented without pre-deoxygenation.

引用

页码：12096 / 12101

页数：6

共 45 条

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