Recent advances on Anthraquinone-based photoinitiators of polymerization

Preparation of amino-substituted anthraquinone: study of the intersystem crossing and application as efficient photoinitiators for photopolymerization

“…The formulations of the photoinitiating system are similar to those reported in the previous literatures. 26,28 On the other hand, for those AQ derivatives showing poor ISC, the photopolymerization needs much longer photoirradiation time.…”

“…Concerning the above aspects, aminoanthraquinone is in particular of interest. 21 These kinds of compounds have been used as disperse dyes in the traditional pigment industry, [22][23][24] or as electron acceptors in photochemistry, or have been used as electron acceptors in photochemistry studies, as molecular probes, 25 and in photopolymerization, [26][27][28] yet the principal photophysical properties of the anthraquinone derivatives were rarely studied. 29,30 However, the photophysical properties of the derivatives are crucial for the performance of the compounds for their applications, thus, it is significant to study the photophysical properties of the compounds.…”

An anthraquinone-based oxime ester as a visible-light photoinitiator for 3D photoprinting applications

“…36 Among structures that were studied for the design of photoinitiators, anthraquinone was under investigation despite its uses in organic electronics for the design of various semi-conductors or light-emitting materials, or in biomedical applications as laxatives and antimicrobial and anti-inflammatory agents. 37 Some examples of anthraquinone derivatives employed for performing the photopolymerization of acrylates, epoxides or styrene were also examined with the addition of co-initiators. [37][38][39][40][41][42][43] But surprisingly, and to the best of our knowledge, an anthraquinone-based oxime ester has never been designed and tested as a Type I photoinitiator.…”

“…37 Some examples of anthraquinone derivatives employed for performing the photopolymerization of acrylates, epoxides or styrene were also examined with the addition of co-initiators. [37][38][39][40][41][42][43] But surprisingly, and to the best of our knowledge, an anthraquinone-based oxime ester has never been designed and tested as a Type I photoinitiator. This prompted us to design such a system.…”

Recent Advances in Visible Light Photoinitiating Systems Based on Flavonoids

“…Natural compounds were also examined as photoinitiators of polymerization such as curcumin [149][150][151][152], different anthraquinones [153][154][155] or naphthoquinones [156]. Flavonoids that can be found in numerous fruits and vegetables [157][158][159][160][161][162][163][164][165], but also in plant products such as chocolate, tea and wine, were identified as promising candidates for the design of visible light photoinitiators.…”