超高分子量阳离子聚丙烯酰胺分散体系的制备与工艺讨论摘要本论文在综合相关文献基础上，对环境友好型阳离子聚丙烯酰胺水分散体系的制备和工艺进行了讨论。1、根据大分子结构设计理论，以丙烯酰胺（AM）单体为主要原料，引入甲基丙烯酰氧乙基三甲基氯化铵（DMC）和甲基丙烯酰氧乙基-苄基-二甲基氯化铵（MBDAC）为阳离子共聚单体，以聚甲基丙烯酰氧乙基三甲基氯化铵（PDMC）为分散剂，选择水溶性偶氮化合物（V-50）为引发剂，在硫酸铵溶液中采纳水分散聚合技术制备了稳定的 P（DMC/AM）共聚物。2、系统考察了阳离子单体的配比、分散剂用量、无机盐浓度、引发剂用量等因素对水分散聚合反应、产物分子量、流动性和水溶性的影响。通过正交试验法确定最佳反应条件为：阳离子单体配比为：1.7:1.3，分散剂用量为 2.0%，引发剂用量 1.39ml，引发温度为 55℃，硫酸铵浓度为：21%。3、利用红外光谱（FTIR）、透射电镜（TEM）、激光粒度分布、激光光散射等分析手段对产品进行了表征。关键词：超高分子量 阳离子聚丙烯酰胺 水分散聚合 STUDIES ON SYNTHESIS AND APPLICATION OF AQUEOUS DISPERSION OFCATIONIC POLYACRYLAMIDE WITH ULTRA HIGH MOLECULAR WEIGHT On the basis of the relevant literature, the preparation rules, the swelling and rheology properties of the aqueous dispersion of cationic polyacrylamide, which was an environment-friendly type, were investigated in this thesis. 1．According to the molecular design clues, this research selected acrylamide(AM) as main raw material, dimethylaminoethyl methacrylate methyl chloride (DMC) as the assistant monomer, poly(dimethylaminoethyl methacrylate methyl chloride) (PDMC) as stabilizer and azo-compounds(V-50) as initiator, the cationic polyelectrolyte was synthesized by aqueous dispersion polymerization in the ammonium sulfate solution.2．The effects of varying factors,i.e.the molar ratios of DMC/PDMC, the concentration of the dispersant, the concentration of ammonium sulfate, the dosage of initiator, molecular weight and the solubility of the system were investigated. By the o...
