Preparation and characterization of hybrid thiol‐ene/epoxy UV–thermal dual‐cured systems |
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| Authors: | Marco Sangermano Monica Cerrone Giovanna Colucci Ignazio Roppolo Ricardo Acosta Ortiz |
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| Affiliation: | 1. Dipartimento di Scienza dei Materiali e Ingegneria Chimica, Politecnico di Torino, C.so Duca degli Abruzzi, 24 I‐10129 Torino, Italy;2. Centro de Investigacion en Quimica Aplicada, Blv Enrique Reyna 140, Saltillo, Coahuila, 25100, Mexico |
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| Abstract: | Hybrid thiol‐ene/epoxy coatings were prepared by combining thiol‐ene photo‐curable formulations with epoxy monomers, through a dual UV–thermal curing process. An increase in glass transition temperature and in storage modulus was observed for the hybrid thiol‐ene/epoxy coatings when compared with the pristine thiol‐ene UV‐cured system. Also, the bisphenol A moieties introduced into the hybrid networks during the dual‐curing process induced an increase in thermal stability of the cured materials. It has been demonstrated that the addition of epoxy monomer to the thiol‐ene photo‐curable system is a good strategy to follow in order to improve the final properties of thiol‐ene‐based coatings leading to a wide range of possible applications for the hybrid materials. Copyright © 2010 Society of Chemical Industry |
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| Keywords: | thiol‐ene photopolymerization coatings epoxy monomer photopolymerization |
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