星形阳离子型聚丙烯酰胺共聚物的制备、表征及絮凝应用  

Synthesis and characterization of star poly(acrylamide-methacryloyloxyethyl trimethyl ammonium chloride) copolymer and its application in flocculation

作　　者：郑宝庆[1] 钱锦文[1] 

机构地区：[1]浙江大学高分子科学研究所,浙江杭州310027

出　　处：《浙江大学学报（理学版）》2007年第4期443-447,共5页Journal of Zhejiang University（Science Edition）

摘　　要：以过硫酸铵和季戊四醇为氧化还原引发体系引发丙烯酰胺(AM)与甲基丙烯酰氧乙基三甲基氯化铵(DMC)自由基共聚合,采用FTIR和1H-NMR进行结构表征.研究了引发剂用量?单体配比及浓度对星形阳离子型聚丙烯酰胺共聚物特性粘数及阳离子度的影响,并用于处理高岭土废水,其絮凝效果明显优于相应的均聚物及线形共聚物.The copolymerization of acrylamide （AM） and methacryloyloxyethyl trimethyl ammonium chloride （DMC） was initiated by heterogeneous redox initiator system, composed of pentaerythritol together with （NH4）2 S2 O8. The star-copolymer was characterized by FTIR and ^1H-NMR. The effect of reaction condition on intrinsic viscosity [r/] and cationic degree of star-copolymer was investigated. The flocculation performance of star-P（AM-DMC） in Kaolin suspension was studied and it was found that its efficiency was better than relevant linear-copolymes.

关 键 词：星形共聚物 聚丙烯酰胺 甲基丙烯酰氧乙基三甲基氯化铵 絮凝剂 

分 类 号：O63[理学—高分子化学]