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A Novel Photopolymerization Initiating System Based on an Iridium Complex Photocatalyst
Author(s) -
Lalevée Jacques,
Blanchard Nicolas,
Tehfe MohamadAli,
Peter Mathieu,
MorletSavary Fabrice,
Fouassier Jean Pierre
Publication year - 2011
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.201100098
Subject(s) - photopolymer , cationic polymerization , iridium , photocatalysis , polymerization , photochemistry , radical , polymer chemistry , ring opening polymerization , materials science , chemistry , polymer , catalysis , organic chemistry
The use of a photocatalyst (tris(2‐phenylpyridine)iridium [Ir(ppy) 3 ]) being able to generate both radicals and cations to initiate free radical polymerization and ring opening polymerization is presented. Remarkably, under soft irradiations (fluorescence bulb, sunlight), excellent cationic polymerization profiles and final conversions are obtained. The involved mechanisms are investigated by ESR experiments.