Polymeric O-acyloxime photobase generator

摘要

Photobase generators release an active base upon irradiation, which can act as a crosslinker for epoxy resins. O-acyloximes are one class of photobase generator that produce an amine (from irradiation followed by hydrolysis) and a ketone by-product. This ketone by-product can often migrate within the matrix, leading to a loss of film thickness, or exude to the surface and possibly cause a problem in packaging and food applications.