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Red‐Light‐Induced Cationic Photopolymerization: Perylene Derivatives as Efficient Photoinitiators
Author(s) -
Xiao Pu,
Dumur Frédéric,
Graff Bernadette,
Gigmes Didier,
Fouassier Jean Pierre,
Lalevée Jacques
Publication year - 2013
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201300383
Subject(s) - photopolymer , photochemistry , cationic polymerization , flash photolysis , perylene , photodissociation , halogen lamp , cyclic voltammetry , chemistry , materials science , irradiation , fluorescence , polymer chemistry , optics , electrochemistry , polymer , kinetics , organic chemistry , reaction rate constant , polymerization , molecule , electrode , physics , quantum mechanics , nuclear physics
Nine different perylene derivatives are prepared and their ability to initiate, when combined with an iodonium salt (and optionally N ‐vinylcarbazole), a ring‐opening cationic photopolymerization of epoxides under very soft halogen lamp irradiation is investigated. One of them is particularly efficient under a red laser diode exposure at 635 nm and belongs now to the very few systems available at this wavelength. The photochemical mechanisms are studied by steady‐state photolysis, electron spin resonance spin trapping, fluorescence, cyclic voltammetry, and laser flash photolysis techniques.