The present invention provides a Michael addition reaction product between a specified compound having a group which functions as a Michael donor and a monomer or polymer having a group which functions as a Michael acceptor, a photoinitiator containing the Michael addition reaction product, and an active energy ray-curable composition containing the photoinitiator. The compound having a group functioning as a Michael donor used in the present invention is a phenyl ketone derivative and is characterized by having an amino group or a mercapto group as the group functioning as a Michael donor.
本发明提供了一种迈克尔加成反应产物,该产物是由具有作为迈克尔供体的基团的指定化合物和具有作为迈克尔受体的基团的单体或聚合物之间的反应产生的,还包括含有该迈克尔加成反应产物的光
引发剂以及含有该光
引发剂的活性能量射线可固化组合物。本发明中使用的具有作为迈克尔供体的基团的化合物是苯基酮衍
生物,其特征在于其作为迈克尔供体的基团具有
氨基或巯基。