How to Avoid the Back Electron Transfer in Type II Photoinitiators
Benzophenone (BP) and camphorquinone (CQ) are long known Type II photoinitiators (PIs) for the radiation curing of Coatings, printing inks, etc. After excitation, the P1 is able to abstract hydrogens from the resin such as from ether functionalities, thus generating reactive radicals on the backbone of the oligomers. Nowadays, amine-based coinitiat