Photopolymerization reactions under visible lights: principle, mechanisms and examples of applications

Difluoroboranyl derivatives as efficient panchromatic photoinitiators in radical polymerization reactions

“…trans-bis(trialkylphosphine) bisacetylide complex with BODIPY ligand (not styrylBODIPY ligand, s T = 128 ls) [51] or a C 60 -styrylBODIPY dyad (71-123 ls) [52]. However, this lifetime is close to that observed with heavy atom effect (s T = 1.8 ls) [53] or trans-bis-(trialkylphosphine) Pt(II) bisacetylide binuclear complex with BODIPY ligand (s T = 5.8 ls) [54]. It is fair to mention that the spectra are noisy and difficult to more precise interpretation.…”

“…Having in mind a wide range of developed applications, there are a lot of advantages of such a panchromatic sensibilization, e.g. : (1) more efficient utilization of mercury lamp due to the absorption of visible photons by a UV-Vis PI, (2) the possibility to use lasers as a light source which gives a better matching of the emission spectrum of the emitter to the absorption spectrum of the sample, (3) the opportunity to use the sunlight for polymer curing [54]. It is also common that the spectral properties of organic compounds and difluoroboranyls may be turned by a variety of methods [26].…”

Study of Reactivity of 3-[{Oxiran-2-yl)methoxy}methyl]-9-ethyl-9H-carbazole in Cationic Photopolymerization

“…50% is achieved after the same period of time. Fouassier et al [19] proposed a mechanism of behavior of iron-arene salts under polychromic light (and heating) in the presence of hydroperoxides (Scheme 3).…”

Light curable dental composites designed with colloidal crystal reinforcement

“…As a co-initiator, DMAEMA acts as a hydrogen-donor in the H-abstraction reaction with CQ during light initiation [34,35]. We later found that DMAEMA had played a more complex role.…”