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Meta ‐Terphenyl Derivative/Iodonium Salt/9H‐Carbazole‐9‐ethanol Photoinitiating Systems for Free Radical Promoted Cationic Polymerization upon Visible Lights
Author(s) -
Mousawi Assi Al,
Dietlin Céline,
Graff Bernadette,
MorletSavary Fabrice,
Toufaily Joumana,
Hamieh Tayssir,
Fouassier Jean Pierre,
ChachajBrekiesz Anna,
Ortyl Joanna,
Lalevée Jacques
Publication year - 2016
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201600224
Subject(s) - cationic polymerization , terphenyl , chemistry , photopolymer , polymerization , carbazole , photochemistry , polymer chemistry , radical polymerization , organic chemistry , polymer
In the present paper, new photoinitiators based on the meta ‐terphenyl scaffold in combination with an iodonium salt and 9H‐carbazole‐9‐ethanol (CARET) are proposed for the free radical promoted cationic polymerization of epoxides upon visible light exposure using light emitting diodes at 405, 455, and 470 nm. Remarkably, a new high performance additive (i.e., CARET) is proposed here for cationic polymerizations. CARET shows some important advantages compared to other reported additives such as N ‐vinylcarbazole or benzyl alcohol used as references. Excellent polymerization initiating abilities are found and a full picture of the involved chemical mechanisms is provided.