三元共聚阳离子型聚丙烯酰胺的合成及应用

Synthesis and application of ternary copolymerization cationic polyacrylamide

摘要:

本实验采用丙烯酰胺（AM）、甲基丙烯酰氧乙基三甲基氯化铵（DMC）及二甲基二烯丙基氯化铵(DMDAAC)为原料，水溶性偶氮盐为引发剂，应用水溶液聚合法合成了一种新型的三元共聚阳离子型聚丙烯酰胺絮凝剂。考察了阳离子单体配比、单体质量分数、反应时间、引发剂用量及反应温度对聚合物分子量的影响。结果表明：该三元共聚物的分子量可达5.1?06，且水溶性好；同时，该产物对煤泥水具有良好的絮凝效果。

Abstract:

The new ternary cationic flocculant P(AM-DMC-DMDAAC) was synthesized by aqueous solution polymerization with raw meterials of acrylamide (AM) , methacryloyloxyethyl trimethyl ammonium chloride (DMC) and dimethyl diallyl ammonium chloride (DMDAAC). Effects of Cationic monomer ratio, monomer concentration, reaction time, amount of initiator and reaction temperature on the molecular weight of the products were investigated. Results indicate that the molecular weight of copolymer is up to 5.1?06, and has excellent water-dissolubility. At the same time, the terpolrmer shows high capability of flocculating performance in slurry.