丙烯酸系共聚物具有广泛的用途，采用反相乳液聚合的方法对其进行了合成规律的研究。在以Ｓｐａｎ－Ｔｗｅｅｎ类或Ｓｐａｎ－ＯＰ类为乳化剂，脂肪烃为油相介质，在用氧化还原引发剂的条件下，研究了聚合反应温度、反应时间、水相ｐＨ值、单体浓度、油水比、共聚单体配比、交联剂用量对聚合反应及产物性能的影响，得到了质量分数ｗ为２％水溶液的粘度η达２０ＰａＳ以上的增稠产物。 Acrylic copolymer has a wide range of uses, the use of reverse-phase emulsion polymerization synthesis of its law. Under the condition of using Span-Tween or Span-OP as emulsifier and aliphatic hydrocarbon as oil phase medium, the polymerization temperature, reaction time, pH value of aqueous phase, monomer concentration, The ratio of oil to water, the ratio of comonomer and the amount of crosslinking agent on the polymerization reaction and product properties were studied. The thickening product with the viscosity η of 20PaS was obtained when the mass fraction w was 2% aqueous solution.