Recent Advances on Carbazole-based Oxime Esters as Photoinitiators of Polymerization
Résumé
Photopolymerization is currently facing a revolution with the development of new light sources that are light-emitting diodes. Considering the low light intensity of these light sources, new photoinitiators exhibiting a higher reactivity than those used in the past have to be developed. Parallel to this, a great deal of efforts is also devoted to simplify the photocurable resins. With aim at simplifying the composition of the resins, monocomponent systems are actively researched. Indeed, if Type II photoinitiators are efficient structures, these compounds need besides to be combined with additives, complexifying the composition of the resins. In this field, oxime esters that are monocomponent Type I photoinitiators are extensively studied since a few years. In this field, the most impressive developments have been obtained for carbazole-based oxime esters since not less than 100 structures have been proposed during the last three years, demonstrating the intense research activity. In this review, an overview of the recent development concerning carbazole-based oxime esters is presented. Comparisons with reference compounds will also be presented to evidence the interest of these new structures.
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1- Recent Advances on Oxime Esters based on Carbazole_HAL.pdf (2.99 Mo)
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