高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (10): 1641.

• 论文 • 上一篇    下一篇

丙烯酰胺在炭黑表面接枝聚合研究

吴璧耀, 刘安华, 周兴平, 蒋子铎   

  1. 武汉化工学院精细化工系, 武汉, 430074
  • 收稿日期:1994-10-26 修回日期:1995-05-17 出版日期:1995-10-24 发布日期:1995-10-24
  • 通讯作者: 吴暨耀,男,49岁,硕士,教授.
  • 作者简介:吴暨耀,男,49岁,硕士,教授.
  • 基金资助:

    国家自然科学基金

Graft Polymerization of Acrylamide onto Carbon Black Surface

WU Bi-Yao, LIU An-Hua, ZHOU Xing-Ping, JIANG Zi-Duo   

  1. Department of Fine Chemical Technology, Wuhan Institute of Chemical Technology, 430074
  • Received:1994-10-26 Revised:1995-05-17 Online:1995-10-24 Published:1995-10-24

摘要: 利用Ce4+和羟甲基化炭黑组成的氧化还原引发体系,探讨了丙烯酰胺在炭黑表面的自由基水溶液接枝聚合机理。研究表明:单体浓度、硝酸浓度和铈盐用量直接影响丙烯酰胺在炭黑表面的接枝聚合。FTIR和TEM分析证明:改性炭黑表面存在着聚丙烯酰胺。改性炭黑粒子的Zeta电位值与未改性炭黑位子相同。但它与水组成的分散体具有极好的分散稳定性。

关键词: 接枝聚合, 表面改性, 炭黑, 丙烯酰胺

Abstract: Using a redox initiating system,which consists of ceric ions and hydroxymethylgroups on carbon black surface, free radical graft polymerization of acrylamide onto carbonblack surface was investigated.It was found that the polymerization was influenced by theconeentrations of acrylamide,nitric acid and ceric ions.The measurements of zeta electricpotential, FTIR and TEM observations showed the presence of graft polymer on the modi-fied carbon black particles,but the zeta electric potential of the particles was not changed.The surface modified carbon black particles possessed excellent dispersion stability in water.

Key words: Graft polymerization, Surface modification, Carbon black, Acrylamide

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