Abstract:

This paper describes the preparation of N N dimethyl hydroxyetbyl acrylamide (DMAPA) with acrylamide, epicholorohydrin and dimethylamide by their non symmetrical condensation reaction and the synthesis of cationic copolymers of different cationic degree by its radical copolymerization with acrylamide in aqueous solution. Besides the cationic nitrogen in copolymer is verified with IR spectrum and the clay stabilizing and floculating properties of the copolymer are evaluated. The experiments show that copolymers of different cationic degree and molecular weight have good applied properties.

Key words: DMAPA, Radical copolymerization, Swelling inhibiting rate