【摘要】 本文研究了两性聚丙烯酰胺的合成，用氧化还原体系在水溶液中聚合加入辅助还原剂，首先制得丙烯酰胺和丙烯酸的阴离子共聚体，再用二甲胺和甲醛进行曼尼希反应改性制得叔胺型两性聚丙烯酰胺，再用硫酸二甲酯季铵化制得季铵型两性聚丙烯酰胺。更多还原

【Abstract】 In this paper,the synthesis of amphoteric polyacrylamide (PAM)and its applications are studied.A little supplementary reducing agent is used in water solution polymerisation by oxidation and reduction system.First,anionic PAMs (acrylamide/acrylic acid copolymer)are synthesized,then these copolymers react with dimethylamine and formaldehyde by the Mannich reaction producing tertiary amine amphoteric PAM.Quaternary ammonium products are formed by reacting with Mannich reaction products with dimetyl sulfate.更多还原