Recent Advances on Chalcone-based Photoinitiators of Polymerization

Malika Ibrahim-Ouali (1) , Frédéric Dumur (2)

1 ISM2 - Institut des Sciences Moléculaires de Marseille
2 ICR - Institut de Chimie Radicalaire

Photopolymerization is an active research field facing a revolution due to the recent availability of cheap, lightweight, compact and energy-saving light sources that constitutes light-emitting diodes (LEDs). With regards to the low light intensity delivered by these new irradiation setups, the demand for photoinitiating systems activable under low light intensity, in the visible range, and exhibiting a high reactivity even under air are actively researched. With aim at developing dyes fitting the above requirements while remaining relatively uncoloured, chalcones are one of those. In this review, an overview of the recent development concerning chalcone-based photoinitiating systems is reported. With aim at evidencing the crucial interest of this family of dyes, comparisons with benchmark photoinitiators will be presented.

Mots clés: Photoinitiator; chalcone; ketone; photopolymerization; LED; low light intensity

Domaines: Polymères

Malika Ibrahim-Ouali, Frédéric Dumur. Recent Advances on Chalcone-based Photoinitiators of Polymerization. European Polymer Journal, 2021, 158, pp.110688. ⟨10.1016/j.eurpolymj.2021.110688⟩. ⟨hal-03319294⟩