Article (Scientific journals)
A glance at violet LED sensitive photoinitiators based on the spiroxanthene scaffold
Mokbel, Haifaa; Poriel, Cyril; Rault-Berthelot, Joëlle et al.
2016In Journal of Applied Polymer Science, 133 (12), p. 43213
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Keywords :
radical polymerization; ring-opening polymerization (ROP); epoxide; acrylate
Abstract :
[en] A novel photoinitiator based on a spiroxanthene scaffold in the presence of an iodonium salt is proposed for the cationic ring-opening polymerization of a diepoxide, as well as for the free-radical polymerization of an acrylate upon violet LED exposure (385 and 405 nm). Good-to-excellent rates of polymerization and final conversions are obtained. These systems are characterized by a higher reactivity compared with that of anthracene/iodonium salt used as reference for cationic near UV polymerization. The addition of a poly(ionic liquid) improves the cationic polymerization profiles. The photochemical mechanisms are studied by steady-state photolysis, fluorescence, and electron spin resonance spin-trapping techniques. Molecular orbital calculations give an insight into the light absorption properties.
Research center :
Center for Education and Research on Macromolecules (CERM)
CESAM Complex and Entangled Systems from Atoms to Materials (CESAM)
Disciplines :
Materials science & engineering
Chemistry
Author, co-author :
Mokbel, Haifaa;  Institut de Science des Matériaux de Mulhouse, CNRS 7361, France > Université Libanaise, Beyrouth, Laboratoire De Matériaux, Catalyse, Environnement et Méthodes Analytiques, Liban
Poriel, Cyril;  Université de Rennes, CNRS 6226, Sciences Chimiques De Rennes, MaCSE Group, France
Rault-Berthelot, Joëlle;  Université de Rennes, CNRS 6226, Sciences Chimiques De Rennes, MaCSE Group, France
Dumur, Frédéric;  Aix-Marseille Université, CNRS, Institut De Chimie Radicalaire, France
Gigmes, Didier;  Aix-Marseille Université, CNRS, Institut De Chimie Radicalaire, France
Toufaily, Joumana;  Université Libanaise, Beyrouth, Laboratoire De Matériaux, Catalyse, Environnement et Méthodes Analytiques, Liban
Hamieh, Tayssir;  Université Libanaise, Beyrouth, Laboratoire De Matériaux, Catalyse, Environnement et Méthodes Analytiques, Liban
Cordella, Daniela;  University of Liège - ULiège > Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Detrembleur, Christophe ;  University of Liège - ULiège > Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Fouassier, Jean-Pierre;  Institut de Science des Matériaux de Mulhouse, CNRS 7361, France
Lalevée, Jacques;  Institut de Science des Matériaux de Mulhouse, CNRS 7361, France
Language :
English
Title :
A glance at violet LED sensitive photoinitiators based on the spiroxanthene scaffold
Publication date :
20 March 2016
Journal title :
Journal of Applied Polymer Science
ISSN :
0021-8995
eISSN :
1097-4628
Publisher :
Wiley, New York, United States - New York
Volume :
133
Issue :
12
Pages :
43213
Peer reviewed :
Peer Reviewed verified by ORBi
European Projects :
FP7 - 289347 - RENAISSANCE - TRAINING NETWORK IN INNOVATIVE POLYELECTROLYTES FOR ENERGY AND ENVIRONMENT
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
CE - Commission Européenne [BE]
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