应用化学 ›› 1993, Vol. 0 ›› Issue (5): 105-107.

• 研究简报 • 上一篇    下一篇

反相悬浮聚合法制取聚丙烯酸钠高吸水性树脂

罗晓峰, 李绵贵, 何培新   

  1. 湖北省化学研究所 430074 武汉
  • 收稿日期:1992-10-20 修回日期:1993-06-16 出版日期:1993-10-10 发布日期:1993-10-10
  • 基金资助:
    湖北省自然科学基金

PREPARATION OF SODIUM ACRYLATE BY INVERSE SUSPENSION POLYMERIZATION

Luo Xiaofeng, Li Miangui, He Peixin   

  1. Hubei Research Institute of Chemistry, 430074 Wuhan
  • Received:1992-10-20 Revised:1993-06-16 Published:1993-10-10 Online:1993-10-10

摘要: 高吸水性聚合物按原料来源有淀粉体系、纤维素体系和合成树脂体系3大类。合成树脂类以其具有吸水稳定性高、生产工艺简单,应用范围广等特点。这类树脂如聚丙烯酸类吸水树脂,可采用反相悬浮聚合(ISP)法制备,传统的分散剂通常为司班、吐温等,聚合体系不稳定,且需减压蒸馏溶剂和介质才能得到聚合物,工业上易粘槽或聚合物呈粉尘而损失。采用十八烷基磷酯单醋作分散剂可克服以上缺点,本文还讨论各种反应条件对吸水率的影响。

关键词: 丙烯酸钠, 高吸水树脂, 反相悬浮聚合

Abstract: A high water-absorbent polyacrylate was obtained by inverse suspension polymerization using monooctadecyl phosphate as dispersion agent. The polymer particle can be easily obtained by filtering without evaporation of solvent. For polymer particles obtained at optimum conditions the deionized-water absorbability and saline solution absorbability were 580 and 68 mL/per gram polymer, respectively.

Key words: sodium acrylate, high water-absorption resin, inverse suspension polymerization