Inverse emulsion polymerization of cationic starch flocculant in kerosene media

cationic polyacrylamide flocculant was prepared by inverse emulsion polymerization using redox initiate system and kerosene as the continuous phase with starch,acrylamide(AM),dimethyldiallyl ammonium chloride(DMDAAC)as raw materials.The optimized condition is:the mass fraction of emulsifier 6%,aqueous monomer concentration 45%,cationic monomer 30% of the total monomer,initiation temperature 45℃,leading time 4h.At this condition,monomer conversion rate can reach to 97.82%,the intrinsic viscosity is 340.21mL/g,and grafting efficiency is 97.93%.