中文摘要：

以丙烯酰胺（AM）和二甲基二烯丙基氯化铵（DMDAAC）为聚合单体，N，N’-亚甲基双丙烯酰胺（MBA）为交联剂，偶氮二异丁咪唑啉盐酸盐（VA-044）为引发剂，采用水溶液聚合法合成了标题化合物，考察了单体物质的量比、引发剂用量、交联剂用量、聚合温度、pH以及单体浓度对聚合反应的影响。研究表明，当单体物质的量比n（丙烯酰胺）：n（阳离子单体）=8：2，引发剂用量为0．05wt％，交联剂用量为0．0005wt％，温度50℃，pH为6，单体浓度为20wt％时，分子量最高达到4．25×10^7g／mol，并通过傅里叶变换红外光谱仪对其结构进行了表征。用所合成的聚丙烯酰胺处理模拟废水，当其投料量为8g／mol时，上层清液透光率能达到92％。

英文摘要：

The reticular high molecular weight cationic polyac- rylamide （CPAM） was synthesized by tht method of aqueous solution polymerization using acrylamide （ AM ） and dial- lyldimethylammoniumchloride （DMDAAC） as monomers, N,N＇-methylenebisacrylamide （MBA） as crosslinking agent and 2,2 ＇-azobis [ 2- （ 2-imidazolin-2-yl ） propane ] dihydrochlo- ride （ VA-044 ） as initiator. Effects of ratio of monomers, a- mount of initiator and crosslinking agent,polymerization tem- perature, pH value and concentration of monomer on the reac- tion have been investigated. Results show that when n（ AM）： n（DMDAAC） = 8：2 for monomer molar ratio,0. 000 5 wt% for an amount of crosslinking agent, initiator used in an a- mount of 0. 05 wt% ,temperature at 50 ℃ , the pH value at 7, concentration of 20 wt% for the monomers, the molecular weight of polymer reached a maximum （4. 25 × 10^7 g/mol）. The tructure of the polymer was confirmed by infrared spec- trometer （IR）. Furthermore, the products were used for the treatment of artificial wastewater with dosage 8 g.mol-1, the transmittance of the supernatant is 92%.