Aminothiazonaphthalic anhydride derivatives as photoinitiators for violet/blue LED‐Induced cationic and radical photopolymerizations and 3D‐Printing resins
Aminothiazonaphthalic anhydride derivatives as photoinitiators for violet/blue LED‐Induced cationic and radical photopolymerizations and 3D‐Printing resins
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DOI：
10.1002/pola.27958
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发表时间：
2016-05
期刊：
影响因子：
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通讯作者：
Jing Zhang;F. Dumur;P. Xiao;B. Graff;D. Gigmes;J. Fouassier;J. Lalevée
中科院分区：
文献类型：
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作者：
Jing Zhang;F. Dumur;P. Xiao;B. Graff;D. Gigmes;J. Fouassier;J. Lalevée
氨基偶氮萘酐衍生物（ATNAs）中产生的阳离子和自由基与碘鎓盐、N-乙烯基咔唑、胺或氯三嗪结合在一起，在405或455 nm的LED下引发环氧化物的开环阳离子聚合和丙烯酸酯的自由基聚合。这些新的光引发体系的光引发能力高于公知的基于邻苯二酚的体系。还提供了新提出的光引发剂的高反应性的一个例子，用于使用LED投影仪@405 nm的3D打印树脂。通过稳态光解、循环伏安、荧光、激光闪光光解和电子自旋共振自旋捕获技术研究了其化学机理
The cations and radicals produced in aminothiazonaphthalic anhydride derivatives (ATNAs) combined with an iodonium salt, N-vinylcarbazole, amine, or chloro triazine initiate the ring-opening cationic polymerization of epoxides and the free radical polymerization of acrylates under LEDs at 405 or 455 nm. The photoinitiating ability of these novel photoinitiating systems is higher than that of the well-known camphorquinone-based systems. An example of the high reactivity of the new proposed photoinitiator is also provided in resins for 3D-printing using a LED projector@405 nm. The chemical mechanisms are investigated by steady-state photolysis, cyclic voltammetry, fluorescence, laser flash photolysis, and electron spin resonance spin-trapping techniques