New chromone based photoinitiators for polymerization reactions under visible light
Literature Information
Publication Date
2013-05-23
DOI
10.1039/C3PY00536D
Impact Factor
5.582
Authors
Mohamad-Ali Tehfe, Frédéric Dumur, Pu Xiao, Bernadette Graff, Fabrice Morlet-Savary, Jean-Pierre Fouassier, Didier Gigmes, Jacques Lalevée
View Original
Abstract
Novel photoinitiators derived from a chromone structure are proposed for the free radical polymerization of acrylates and the free radical promoted cationic polymerization of epoxides upon exposure to a 457 nm laser diode and even under soft irradiation conditions (blue LED bulb at 462 nm and halogen lamp). Good polymerization profiles are obtained. These original dyes exhibit a push–pull molecular character as revealed by MO calculations. The initiation mechanisms are analyzed through ESR, fluorescence and laser flash photolysis experiments.
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Source Journal
Polymer Chemistry
CiteScore:
8.6
Self-citation Rate:
7.3%
Articles per Year:
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