Copolymerization of acrylamide and dimethyldiallylammonium chloride assisted by photo-initiation

Cationic polyacrylamide P(AM-DMDAAC)was synthesized in aqueous solution using dimethyldiallylammonium chloride(DMDAAC)and acrylamide(AM)as monomers by assistance of photo-initiation.The effects of initiation system,m(DMDAAC)∶m(AM),initiation temperature,pH,chelator concentration and initiator concentration on the intrinsic viscosity and solubility of product were studied.Under the conditions of concentration 30%,m(DMDAAC)∶m(AM)= 20∶80,initiation temperature 20 ℃,pH=6,EDTA·2Na amount 0.001 0%,initiator concentration 0.003 0%,the intrinsic viscosity was more than 12 dL/g and the dissolving time was 67 min.The structure of copolymer was characterized by IR.