Recent advances on benzylidene ketones as photoinitiators of polymerization

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作者：
Dumur, Frédéric [1 ]
机构：
[1] Aix Marseille Univ, CNRS, ICR, UMR 7273, Marseille,F-13397, France
来源：
European Polymer Journal | 2022年 / 178卷
关键词：
Visible light photopolymerization is facing a revolution with the development of monocomponent photoinitiating systems greatly simplifying the composition of the photocurable resins. Among unimolecular photoinitiators; chalcones and related structures are extensively studied due to the easiness of synthesis; the versatility of the substitution pattern and the good thermal stability. Among chromophores that can be used for the design of photoinitiators; benzylidene ketones have been identified as promising scaffolds due to their facile syntheses reduced to a unique synthetic step; the possibility to access to these structures using environmentally friendly conditions and their good absorptions in the visible range. In this review; an overview of the recent advances on benzylidene ketones used as visible light photoinitiators is provided. Notably; these structures could be used for both one photon and two-photon polymerizations; evidencing the versatility of these structures. To evidence the interest of benzylidene ketones; comparisons with benchmark photoinitiators are provided. © 2022 Elsevier Ltd;
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