【摘要】 <正>有机阳离子高分子絮凝剂PDA是二甲基二烯丙基氯化铵(DMDAAC)与丙烯酰胺(AM)的共聚物,其化学结构通常如图1所示。与其他阳离子聚丙烯酰胺聚电解质相比,PDA分子结构上具有大分子链上所带正电荷密度高、水溶性好、高效、无毒、阳离子结构单元稳定、pH使用范围广、相对分子质量易于控制等优点。因此,PDA被广泛用于石油、造纸、污水处理、纺织、日化及其他领域中,成为当代化学界的一大研究热点。国外自20世纪更多还原

【Abstract】 This article reviewed the progress of the polymerization methods and applications of the copolymer PDA(poly(dimethyl diallylammonium chloride -co-acrylamide)) synthesized from dimethyl diallylammonium chloride and acrylamide.Different methods for polymerization to obtain PDA were discussed.PDA can be used in various fields,such as wastewater treatment,papermaking,mining,petrochemical and daily chemical industry,all these were discussed in detail separately in this article.Based on the aforementioned illustrations the future trends of application and development of PDA were prospected.更多还原