新型超高相对分子量阳离子聚丙烯酰胺的合成  

Synthesis of Ultra-high Molecular Weight Cationic Polyacrylamide

作　　者：丁伟[1] 张艳秋[1] 于涛[1] 孙艳萍[1] 

机构地区：[1]大庆石油学院化学化工学院,黑龙江大庆163318

出　　处：《胶体与聚合物》2004年第4期23-25,共3页Chinese Journal of Colloid & Polymer

摘　　要：研究了由过硫酸铵、甲醛次硫酸氢钠、功能性单体 DA及其它助剂组成的低温复合引发体系引发丙烯酰氧乙基三甲基氯化铵 (AETMAC)与丙烯酰胺 (AM)水溶液绝热聚合。考察了影响共聚物特性黏数[η]的因素 :单体浓度 1 8%～ 3 2 % ,引发剂浓度 (9～ 3 0 ) mg/L ,功能单体浓度 (2 .9～ 2 3 .2 )× 1 0 - 3mol/L。由该低温复合引发体系在适宜条件下引发 AETMAC/AM共聚合 ,可得到溶解性能很好、阳离子度为 1 0 %～70 % ,分子量 (1～ 2 )× 1 0 7的 P(AETMAC-AM)干粉。In this paper, the copolymerization of [2-(acyloyloxy)ethyl] trimethylammonium chloride (AETMAC) and acrylamide (AM) initiated by the multi-initiating system of ammonium persulfate, sodium formaldehyde sulfoxylate, functional monomer(DA) and other additives at low temperature was investigated. The factors influencing on the copolymer inherent viscosity[η] were studied, such as monomer concentration(18%~32%), initiator concentration(9mg/L^30mg/L),and functional monomer concentration(2.9×10 -3 mol/L^23.2×10 -3 mol/L). Under these conditions, the cationic polyacrylamide with good solubility, 10%~70% cationic degree and molecular weight 1×10 7~2×10 7 were obtained.

关 键 词：超高相对分子质量 阳离子聚丙烯酰胺 合成 复合引发体系 共聚合 

分 类 号：O633.22[理学—高分子化学]