Photoinitiator and preparation method thereof

• Main Authors: LI ZHIGUO, CHENG HAO, JIANG JUHONG, XIONG JIANGDONG, JUNG IN-YONG
• Format: Patent
• Language: Chinese; English
• Published: 25.06.2024
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention relates to the technical field of photoinitiators, in particular to a photoinitiator and a preparation method thereof, the structural formula of the photoinitiator is as shown in the formula 1: # imgabs0 #, R1 and R2 are the same or different and are independently selected from hydrogen, deuterium, hydroxyl, C1-C4 alkyl or a group as shown in the formula 2; 3 # imgabs1 # R3 and R4 are the same or different and are independently selected from hydrogen, C1-C4 alkyl, C6-C30 aryl and C6-C30 aromatic amido, the photo-initiation activity of the photo-initiator is far higher than that of benzophenone, tertiary amine co-initiators do not need to be added, and the photo-initiator is efficient. 本发明涉及光引发剂技术领域，具体为一种光引发剂及其制备方法，其结构式如下式1所示：#imgabs0#其中，R1和R2相同或不同，各自独立的选自氢、氘、羟基、C1-C4烃基或式2所示基团；#imgabs1#R3和R4相同或不同，各自独立的选自氢、C1-C4烃基、C6-C30芳香基、C6-C30芳香胺基，本发明的光引发剂光引发活性远大于二苯甲酮，而且无需加入叔胺类共引发剂，是一种高效的光引发剂。