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Preparation and characterization of hybrid thiol‐ene/epoxy UV–thermal dual‐cured systems
Author(s) -
Sangermano Marco,
Cerrone Monica,
Colucci Giovanna,
Roppolo Ignazio,
Acosta Ortiz Ricardo
Publication year - 2010
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.2822
Subject(s) - epoxy , ene reaction , monomer , materials science , thermal stability , thiol , curing (chemistry) , glass transition , bisphenol a , polymer chemistry , polymer , composite material , chemical engineering , organic chemistry , chemistry , engineering
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