高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (6): 673.

• 研究简报 • 上一篇    

过硫酸钾-脲氧化还原引发下的丙烯酰胺水溶液聚合

刘庆普, 哈润华, 刘宏荣, 胡金生   

  1. 天津大学应用化学系
  • 收稿日期:1987-12-22 出版日期:1989-06-24 发布日期:1989-06-24
  • 通讯作者: 刘庆普

Aqueous Polymerization of Acrylamide Initiated by K2S2O8-Urea Redox

Liu QingPu, Ha Runhua, Liu Hongrong, Hu Jinsheng   

  1. Department oj Applied Chemistry, Tianjin University, Tianjin
  • Received:1987-12-22 Online:1989-06-24 Published:1989-06-24

摘要: 为制备高分子量聚丙烯酰胺(PAM),对其引发体系,尤其是对氧化还原引发做了许多探索[1]

关键词: 聚丙烯酰胺, 氧化还原引发, 动力学

Abstract: The kinetics of aqueous polymerization of acrylamide initiated by potassium pcrsulfate and urea was investigated. The results arc sumarizod in the empirical expression, Rp<∝[AM]1.5CK2S2O8]0.45[CO(NH2)2]0 in the range of CK2S2O8]= (1.036~7.542).10-5m0l/LandCCO(NH2)2= (0.479~47.930)-10-4 mol/L.The overall activation energy of polymerization equals 51.27 kJ/mol which confirms that this initiation is a redox reaction. The effect of urea on molecular weight of the polymers is discussed.

Key words: Polyacrylamidc-, Rcdox initiation, Kinetics

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