Preparation and application of modified photoinitiator based on 2-hydroxy-2-methyl-1-phenyl-1-acetone

• Main Authors: PANG SIYU, CAO HUI, QIN PEIYONG, SI ZHIHAO, ZHUANG YAN, TAN TIANWEI, WU HANZHU
• Format: Patent
• Language: Chinese; English
• Published: 06.06.2023
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention relates to a modified photoinitiator based on 2-hydroxy-2-methyl-1-phenyl-1-acetone, and the modified photoinitiator is high in thermal stability and excellent in migration stability, and can be used for preparing a PDMS (Polydimethylsiloxane) film. The invention also relates to a preparation method of the modified photoinitiator, according to the method, alkyl chains with different lengths, i.e., hexyl isocyanate, dodecyl cyanate and octadecyl isocyanate, react with hydroxyl of a 1173 photoinitiator through isocyanate bonds, and alkyl is introduced into the 1173 photoinitiator, so that the thermal stability and migration stability of the photoinitiator are improved, and the photoinitiator can be used for preparing the photoinitiator. A pervaporation test shows that the separation performance of the PDMS membrane prepared from the modified photoinitiator on butanol is improved. 本发明涉及一种基于2-羟基-2-甲基-1-苯基-1-丙酮的改性光引发剂，该改性光引发剂热稳定性高、迁移稳定性优异，可用于用于制备PDMS膜。本发明还涉及上述改性光引发剂的制备方法，该方法将不同长度的烷基链，即异氰酸己酯、十二烷基氰酸酯、异