A series of photoinitiators, quaternary ammonium tetraphenylborate salts (QA Salts-BPh4) with various chromophores, have been synthesized and characterized by elemental analysis (EA), H-1 NMR and IR. The photochemistry and photophysics of QA Salts-BPh4 have been investigated by UV spectroscopy. The formation of triethylenediamine (TEDA) and phenyl free radical in the photolysis of QA Salts-BPh4 was ascertained by mass spectrometric method. Their reactivity in the thermal curing of epoxide resin such as EPON827 and radical polymerization of acrylate monomers such as trimethylolpropane triacrylate (TMPTA) was studied. It is found that the relative initiator efficiency of QA Salts-BPh4 is related to the structure of chromophore. (c) 2005 Elsevier Ltd. All rights reserved.
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CIFICEN UNCPBA CONICET CICPBA, Fac Ingn, Avda Valle 5737,B7400JWI, Buenos Aires, DF, ArgentinaCIFICEN UNCPBA CONICET CICPBA, Fac Ingn, Avda Valle 5737,B7400JWI, Buenos Aires, DF, Argentina
Eyler, Gladys N.
Minellono, Celedonio
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CIFICEN UNCPBA CONICET CICPBA, Fac Ingn, Avda Valle 5737,B7400JWI, Buenos Aires, DF, ArgentinaCIFICEN UNCPBA CONICET CICPBA, Fac Ingn, Avda Valle 5737,B7400JWI, Buenos Aires, DF, Argentina
Minellono, Celedonio
Barreto, Gaston
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CIFICEN UNCPBA CONICET CICPBA, Fac Ingn, Avda Valle 5737,B7400JWI, Buenos Aires, DF, ArgentinaCIFICEN UNCPBA CONICET CICPBA, Fac Ingn, Avda Valle 5737,B7400JWI, Buenos Aires, DF, Argentina
Barreto, Gaston
Canizo, Adriana
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CIFICEN UNCPBA CONICET CICPBA, Fac Ingn, Avda Valle 5737,B7400JWI, Buenos Aires, DF, ArgentinaCIFICEN UNCPBA CONICET CICPBA, Fac Ingn, Avda Valle 5737,B7400JWI, Buenos Aires, DF, Argentina
Canizo, Adriana
Morales, Graciela E.
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Ctr Invest Quim Aplicada, Blvd Enrique Reyna 140, Saltillo 25294, Coahuila, MexicoCIFICEN UNCPBA CONICET CICPBA, Fac Ingn, Avda Valle 5737,B7400JWI, Buenos Aires, DF, Argentina
Morales, Graciela E.
Brandolin, Adriana
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PLAPIQUI, Camino La Carrindanga Km 7 E2,B8000CPB, Buenos Aires, DF, ArgentinaCIFICEN UNCPBA CONICET CICPBA, Fac Ingn, Avda Valle 5737,B7400JWI, Buenos Aires, DF, Argentina
Brandolin, Adriana
Asteasuain, Mariano
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PLAPIQUI, Camino La Carrindanga Km 7 E2,B8000CPB, Buenos Aires, DF, ArgentinaCIFICEN UNCPBA CONICET CICPBA, Fac Ingn, Avda Valle 5737,B7400JWI, Buenos Aires, DF, Argentina
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Ctr. for Macromolecular Engineering, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA 15213, United StatesCtr. for Macromolecular Engineering, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA 15213, United States
Davis, Kelly A.
Charleux, Bernadette
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Lab. de Chim. Macromolecularie, Univ.´ Pierre et Marie Curie, T44 E1, 4, Place Jussieu, 75252 Paris, Cedex 05, FranceCtr. for Macromolecular Engineering, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA 15213, United States