Acrylate monomers are more reactive than methacrylates.
Reactivities of monomers increase when their functionalities are increased. Oxygen present in ambient air generally inhibits photopolymerization and an increase in the t inh , because it reacts with the free amine radicals and monomer propagation radicals giving peroxy radicals. The type of monomers and AMIH, as well as the concentration of CQ and AMH all affect the polymerization kinetics. Some other factors such as temperature, addition of inorganic fillers and presence of saliva, influence in different ways the kinetics of polymerization, double bonds and monomer conversions.