Monoacylphosphine oxides with substituents in the phosphonyl moiety as Norrish I photoinitiators: Synthesis, photoinitiattion properties and mechanism
作者:Haodong Duan、Kangwei Leng、Xiaolei Xu、Qianmin Li、Dayong Liu、Yuxi Han、Jun Gao、Qing Yu、Zhongwei Wang
DOI:10.1016/j.jphotochem.2021.113517
日期:2021.12
TMBPO showed that the introduction of methyl groups into the phosphonyl moiety of MAPO significantly enhanced its stability and light absorption abilities. The photopolymerization of trimethylolpropane triacrylate (TMPTA) showed that the initiation efficiency of 4-MTPO and 2,4-DMTPO were higher than that of TPO, regardless of whether it was initiated upon LED at 385 nm or 420 nm. In addition, the migration
为了研究单酰基氧化膦(MAPO)的膦酰基部分的取代基对其稳定性和引发性能的影响,(2,4,6-三甲基苯基)(苯基)(苯甲酰基)氧化膦(TMBPO),(4-甲苯基)(苯基)(2,4,6-三甲基苯甲酰基)氧化膦(4-MTPO)和(2,4-二甲苯基)(苯基)(2,4,6-三甲基苯甲酰基)氧化膦(2,4-DMTPO)被设计和准备。对 TMBPO 的研究表明,将甲基引入 MAPO 的膦酰基部分显着增强了其稳定性和光吸收能力。三羟甲基丙烷三丙烯酸酯 (TMPTA) 的光聚合反应表明,4-MTPO 和 2,4-DMTPO 的引发效率高于 TPO,无论是在 385 nm 还是 420 nm 的 LED 上引发。此外,4-MTPO 和 2 的迁移率,