High efficiency photoinitiators with extremely low concentration based on furans derivative

Recent advances on benzylidene ketones as photoinitiators of polymerization

“…In this work, photoinitiating ability of 1,5-di(furan-2-yl)penta-1,4-dien-3-one (DFP) was compared to that of a chalcone also possessing two furane moieties, namely 1,3-di(furan-2-yl)prop-2-en-1-one (DFP-e) but differing by the conjugation length (See Figure 29). [319] From the absorption viewpoint, major differences could be found between DFP and DFP-e. Thus, by elongation of the π-conjugation in DFP and by introducing an additional double bond in DFP, a redshift of 17 nm could be determined between DFP and DFP-e, from 343 nm to 360 nm.…”

Recent advances on chalcone-based photoinitiators of polymerization

“…comprising respectively a pyrrole or a furane moiety (See Figure 26). [241] Due to the electron-releasing nature of the two groups, the two chalcones showed a significant absorption at 405 nm. Indeed, C75 and C74 exhibited absorption maxima at 390 nm (26335 Mwere compared to that of 2-isopropylthioxanthone (ITX), which is extensively studied in combination with an iodonium salt.…”

IV. Ikergazte. Nazioarteko ikerketa euskaraz. Kongresuko artikulu bilduma. Zientziak eta Natura Zientzia

“…Bestetik, intentsitate oso baxuko argi ultramorea estimulutzat duen hastarazle sistema bat aurkitu dugu, zeinaren funtzionamendua ondorengoan datza (Yang et al 2021): koloratzaileak intentsitate txikiko argi ultramorea xurgatu eta aktibatu egiten da ( 1). Honela, inguruan dagoen Hona hemen aipatutako molekula bakoitzak duen egitura :…”