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Issue 15, 2013
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New chromone based photoinitiators for polymerization reactions under visible light

Mohamad-Ali Tehfe,a  Frédéric Dumur,b  Pu Xiao,a  Bernadette Graff,a  Fabrice Morlet-Savary,a  Jean-Pierre Fouassier,c  Didier Gigmes*b  and  Jacques Lalevée*a 
Author affiliations

* Corresponding authors

a Institut de Science des Matériaux de Mulhouse IS2M, UMR CNRS 7361, UHA, 15, rue Jean Starcky, 68057 Mulhouse Cedex, France
E-mail: jacques.lalevee@uha.fr

b Aix-Marseille Université, CNRS, Institut de Chimie Radicalaire, UMR 7273, F-13397 Marseille, Cedex 20, France
E-mail: didier.gigmes@univ-amu.fr

c UHA-ENSCMu, 3 rue Alfred Werner, 68093 Mulhouse, France

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.

Graphical abstract: New chromone based photoinitiators for polymerization reactions under visible light

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Publication details

The article was received on 26 Apr 2013, accepted on 21 May 2013 and first published on 23 May 2013


Article type: Paper
DOI: 10.1039/C3PY00536D
Citation: Polym. Chem., 2013,4, 4234-4244
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    New chromone based photoinitiators for polymerization reactions under visible light

    M. Tehfe, F. Dumur, P. Xiao, B. Graff, F. Morlet-Savary, J. Fouassier, D. Gigmes and J. Lalevée, Polym. Chem., 2013, 4, 4234
    DOI: 10.1039/C3PY00536D

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