In this paper , the copolymer of am 、 aa and amptac was synthesized in aqueous solution through radical polymerization . its function as water shut off agent was studied , comparing that of anionic polyacrylamide 以丙烯酰胺、丙烯酸和2 -丙烯酰亚胺基- 2 -甲基丙基三甲基氯化铵为原料，以水作溶剂，选用氧化-还原引发体系，合成了一种新型两性聚合物堵水剂，并与阴离子聚丙烯酰胺对比评价了其堵水性能。
