中华医学超声杂志

应用化学 ›› 1993, Vol. 0 ›› Issue (3): 114-115.

• 研究简报 • 上一篇    下一篇

丙烯酰胺反相悬浮聚合

李园春, 李绵贵   

  1. 湖北省化学研究所 430074 武汉
  • 收稿日期:1992-05-28 修回日期:1992-11-28 出版日期:1993-06-10 发布日期:1993-06-10

INVERSE SUSPENSION POLYMERIZATION OF ACRYLAMIDE

Li Yuanchun, Li Miangui   

  1. Hubei Research Institute of Chemistry, 430074 Wuhan
  • Received:1992-05-28 Revised:1992-11-28 Published:1993-06-10 Online:1993-06-10

PDF

488

被引次数

20 | 5

摘要： 文献上对丙烯酰胺的反相乳液聚合、反应机理和动力学模型的报道较多,有关反相悬浮聚合则报道甚少。Dimonie等考察了引发剂浓度、水相加入的方式等对聚合物分子量的影响。本实验以石油醚为连续相,聚乙烯醇、司班-20及司班-80为分散剂,K2S2O8为引发剂组成反相悬浮聚合体系,所得聚丙烯酰胺呈明显的颗粒状,极易与溶剂分离且转化率高,分子量大。

关键词: 丙烯酰胺, 反相悬浮聚合

Abstract: The inverse suspension polymerization of acrylamide has been carried out in the presence of emulsifier Span 20 and Span 80, and K2S2O8 as initiator. The polymerization rate Rp was found to be proportional to [M]0.13 and to [I]0.11, and the molecular weight of polymer Mw varied with [M]1.1 and [I]0.11 respectively. The overall activation energy for polymerization of aerylamide at 40～50℃ was calculeted to be 30.5 kJ/mol.

Key words: inverse suspension polymerization, acrylamide

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