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Localized Surface Plasmon Resonance Meets Controlled/Living Radical Polymerization: An Adaptable Strategy for Broadband Light‐Regulated Macromolecular Synthesis
Author(s) -
Jiang Jingjie,
Ye Gang,
Lorandi Francesca,
Liu Zeyu,
Liu Yanqi,
Hu Tongyang,
Chen Jing,
Lu Yuexiang,
Matyjaszewski Krzysztof
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201906194
Subject(s) - polymerization , surface plasmon resonance , photochemistry , chain transfer , materials science , photocatalysis , monomer , reversible addition−fragmentation chain transfer polymerization , radical polymerization , chemistry , nanotechnology , nanoparticle , polymer , organic chemistry , composite material , catalysis
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 Ag 3 PO 4 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.