部分
TMPTA公司
氧化膦
化学
光致聚合物
光引发剂
氧化物
高分子化学
药物化学
光化学
立体化学
磷化氢
有机化学
单体
催化作用
聚合物
作者
Haodong Duan,Kangwei Leng,Xiaoling Xu,Qianmin Li,Dayong Liu,Yuxi Han,Jun Gao,Qing Yu,Zhongwei Wang
标识
DOI:10.1016/j.jphotochem.2021.113517
摘要
In order to study the effect of the substituents in the phosphonyl moiety of monoacylphosphine oxide (MAPO) on its stability and initiation performance, (2,4,6-trimethylphenyl)(phenyl)(benzoyl)phosphine oxide (TMBPO), (4-tolyl)(phenyl)(2,4,6-trimethylbenzoyl)phosphine oxide (4-MTPO) and (2,4-xylyl)(phenyl)(2,4,6-trimethylbenzoyl)phosphine oxide (2,4-DMTPO) were designed and prepared. Studies on 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 rates of 4-MTPO and 2,4-DMTPO in cured TMPTA were approximately 1/2 and 1/4 that of TPO, respectively.
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