No abstract

In this investigation, nanoparticles of ferroferric oxide were synthesized and used as the photo initiator in the polymerization of acrylamide. The influences of different factors, including reaction time, light intensity, the content of ferroferric oxide nanoparticles, and the concentration of acrylamide monomer on the synthesis of polyacrylamide were discussed. The possible mechanisms of the photopolymerization irritated by Fe3O4 nanoparticles, and the photoinitiation stage with the participantion of the acrylamide radicals were also proposed. The results show that the ferroferric oxide nanoparticles could be successfully applied in the photopolymerization. The optimum conditions of the photopolymerization of acrylamide, which include acrylamide monomer content of 30wt%, reaction time of 30 mins, the Fe3O4 nanoparticles concentrations of 1.2 mmol/l, and the light intensity of 8.0 mW/cm2.