Abstract:

Cationic copolymer acrylamide-dimethyldiallylammonium chloride ［P(AM/DMDAAC)］ was synthesized from acrylamide (AM) and dimethyldiallylammonium chloride (DMDAAC) by dispersion polymerization.The structures of polymers synthesized in different systems of dispersion were determined with infrared spectroscopy.The results showed that ethanol-H₂O was the best system of dispersion.The characteristics of PDMDAAC-AM were studied by means of various instrumental analysis techniques, including transmission electron microscope (TEM) and Zetasizer 3000HS_A.The results showed that the particle size of cationic PDMDAAC-AM synthesized in the ethanol-H₂O system of dispersion was within the range of nanometer, and the dispersion polymerization in the emulsion state was helpful to dissipation of reaction heat.