摘要
采用含少量溶剂的水溶液聚合法合成了超低分子量聚丙烯酰胺.以乙醇为移热溶剂,甲酸钠为链转移剂,过硫酸铵为引发剂,探讨了溶剂、链转移剂、引发剂浓度对聚合物分子量的影响.在单体质量分数为40%,链转移剂浓度为0.12～1.47 mol/L,溶剂浓度为0.87～4.35 mol/L,引发剂浓度为(3.5～17.5)×10-3 mol/L的实验条件下,所获得的聚丙烯酰胺分子量范围为(1.1～8.0)×104.
The polyacrylamide （PAM）with super low molecular weight was prepared by aqueous solution polynerization containing a little organic solvent. The influence on molecular weight of PAM of amount of solvent, initiation and chain-transfer agent has been studied. The polyacrylamide with molecular weight of（1.1-8.0）×10^4 was derived under determine condition.
出处
《河南科学》
2008年第2期163-165,共3页
Henan Science
基金
河南省科技攻关项目(0424270093)
关键词
低分子量
聚丙烯酰胺
链转移
水溶液聚合
low molecular weight
polyaerylamide
chain-transfer
polymerization of aqueous solution
