丙烯酰胺在离子液体中的聚合反应研究  

Study on Polymerization of Acrylamide in Ionic Liquid

作　　者：邓建国[1] 贺江平[1] 王宪忠[1] 孙素明[1] 朱敬芝[1] 纪兰香[1] 刘小波[1] 

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621900

出　　处：《精细与专用化学品》2007年第19期14-16,共3页Fine and Specialty Chemicals

基　　金：中国工程物理研究院化工材料研究所所长基金(62601080312)

摘　　要：以四氟硼酸1-丁基-3-甲基咪唑([bmim]BF4)离子液体为反应溶剂,以过氧化苯甲酰-N,N-二甲基苯胺氧化还原体系为引发剂引发聚合了丙烯酰胺。采用粘度法测定了聚丙烯酰胺的相对粘均分子量,考察了聚合反应时间、反应温度、引发剂浓度对聚合物分子量和聚合反应单体转化率的影响。结果表明,丙烯酰胺可以在[bmim]BF4离子液体中进行氧化还原聚合,聚合物分子量随反应温度的升高而下降,聚合反应速率随着温度的升高而升高,得到的聚丙烯酰胺分子量可高达7.32×107以上,且水溶性良好。Polymerization of acrylamide is carried out in 1-butyl-3-methylimidazolium tetrafluroborate （ [ bmim] BF4 ）ionic liquid as solvent with benzoyl peroxide-N,N-dimethyl aniline as redox initiating system. The relative viscosity-averagemolecular weight of the polymer is measured by viseometer. The factors which effect molecular weight and conversion of the monomer such as the reaction time,reaction temperature, the concentration of the initiator were investigated. The results show that acrylamide can polymerize via redox polymerization in [ bmim ] BF4 and the molecular weight of the polymer decreases along with the rising of temperature and the polymerization rate increases along with the increase of temperature, the molecular weight of obtained product exceeds 7.32 ×10^7 with good water solubility.

关 键 词：离子液体 氧化还原引发 丙烯酰胺 

分 类 号：O631.5[理学—高分子化学]