三元共聚阳离子聚丙烯酰胺的合成及性能评价  

Synthesis and evaluation of ternary copolymerization cationic polyacrylamide

作　　者：刘晓平[1] 王洪运[1] 张鹏[1] 秦绪平[1] 张孟力[2] 

机构地区：[1]山东大学化学与化工学院,山东济南250061 [2]济南市科学技术信息研究所,山东济南250001

出　　处：《山东大学学报（工学版）》2009年第3期71-76,共6页Journal of Shandong University（Engineering Science）

基　　金：山东省优秀中青年科学家科研奖励基金资助项目(2008BS04008)

摘　　要：以丙烯酰胺(AM)为分子骨架,丙烯酰氧乙基三甲基氯化铵(DAC)和二烯丙基二甲基氯化铵(DMDAAC)为阳离子单体,通过水溶液共聚合的方法,合成了一种新型高分子材料——阳离子絮凝剂P(AM-DAC-DMDAAC).确定了反应的最佳合成条件:单体质量分数30%,引发温度12℃,pH值为5.0,阳离子单体含量25%,引发剂AM-01和K2S2O8质量分数分别为0.03%和0.003%.用粘度法测定了聚合物的相对分子质量,运用红外光谱和核磁共振对聚合物结构进行分析,并用合成的絮凝剂对城市生活污水进行絮凝试验,测定其絮凝性能.A new polymer materials cationic flocculant P（AM-DAC-DMDAAC） was synthesized by aqueous solution polymerization using acrylamide （AM） as the molecular backbone, acryloyloxyethyl trimethyl ammonium chloride （DAC） and dimethyl diallyl ammonium chloride （DMDAAC） as the cation group. The obtained optimum reaction conditions were as follows： mass fraction of monomer 30%, initiator temperature 12 ℃ ,pH 5.0, cationic monomer concentration 25%, initiator AM-01 0.03% and K2S2O8 0.003%. The molecular weights of polymers were measured by the viscosity method, and the structure of the polymers were characterized by the infrared absorption spectrum and nuclear magnetic resonance. The polymers＇ capability of floccu- lating performance was investigated in waste water.

关 键 词：丙烯酰胺 高分子材料 阳离子絮凝剂 丙烯酰氧乙基三甲基氯化铵 二烯丙基二甲基氯化铵 

分 类 号：TQ314.253[化学工程—高聚物工业]