中华医学超声杂志

应用化学 ›› 1992, Vol. 0 ›› Issue (5): 77-79.

• 研究简报 • 上一篇    下一篇

水溶性聚合物和两亲聚合物 13.低分子量聚丙烯酸及其钠盐的合成

许观藩1, 高林1, 方天如1, 王文仁2, 郑贻基2   

  1. 1. 中国科学院长春应用化学研究所, 长春 130022;
    2. 吉林工业大学应用化学系, 长春
  • 收稿日期:1991-06-28 修回日期:1991-09-16 出版日期:1992-10-10 发布日期:1992-10-10
  • 基金资助:
    吉林省科学技术委员会应用基础研究资助项目

WATER-SOLUBLE AND AMPHIPHILIC POLYMERS 13. SYNTHESIS OF LOW MOLECULAR WEIGHT POLY(ACRYLIC ACID) AND ITS SODIUM SALT

Xu Guanfan1, Gao Lin1, Fang Tianru1, Wang Wenren2, Zheng Yiji2   

  1. 1. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022;
    2. Department of Applied Chemistry, Jilin University of Technology, Changchun
  • Received:1991-06-28 Revised:1991-09-16 Published:1992-10-10 Online:1992-10-10

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摘要： 低分子量(<2×104)聚丙烯酸(PAA)及其钠盐有着日趋广泛的应用前景,包括用作工业水系统的除垢、防垢剂,金属材料的新型淬火剂及造纸工业中所用颜料的分散剂等。为此已发展了一些合成方法,如使用链转移剂[1]、在异丙醇-水混合溶剂中聚合[2]、用金属盐-过氧化氢引发体系[3,4]以及使用特殊的水溶性偶氮化物作为引发剂[5]等。

关键词: 低分子量聚丙烯酸, 过硫酸铵, 三元氧化还原引发体系

Abstract: Poly (acrylic acid) (PAA) and its sodium salt of sow molecular weight were synthe-sized by using some redox initiator systems in which (NH4)2S2O8 was a main component,It was found that in acid solutions the resulted polymers were not crosslinked when FeSO4,CuSO4,or Na2S2O3 was present, In neutral solutions the (NH4)2S2O8-FeSO4-NaHSO3 ternary redox system was proved to be preferential for synthesizing Iow molecular weight PAA and conveniently controlling its molecular weight.

Key words: low molecular weight PAA, ammonium persulphate, ternary redox initiator system

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