应用化学 ›› 1998, Vol. 0 ›› Issue (4): 21-24.

• 研究论文 • 上一篇    下一篇

丙烯腈在铝表面的原位电化学聚合涂层

陶映初, 顾志忙, 张曦   

  1. 武汉大学环境科学系 武汉 430072
  • 收稿日期:1998-03-02 修回日期:1998-04-22 出版日期:1998-08-10 发布日期:1998-08-10

An Approach to Polyacrylonitrile Coating Formed by in-situ Electrochemical Polymerization on Aluminium

Tao Yingchu, Gu Zhimang, Zhang Xi   

  1. bortment Of Environment Science, Wuhan University, Wuhan 430072
  • Received:1998-03-02 Revised:1998-04-22 Published:1998-08-10 Online:1998-08-10

摘要: 采用恒电位在铝阴极上原位电化学聚合丙烯腈(AN)形成聚合涂层,研究了支持电解质、电聚合电位及单体浓度等的影响,考察了电流随电聚合时间的变化趋势.结果表明,室温下当电聚合电位为7.0V时,在含DMF和0.05mol/L的AlCl3支持电解质水溶液中,一定浓度的AN电聚合3h可得到约15μm原位聚合涂层.用SEM和FTIR等技术表征了膜层的形貌,讨论了AlAN阴极电化学聚合机理.

关键词: 丙烯腈, 铝阴极, 原位电化学聚合

Abstract: Polyacrylonitrile coating was formed on aluminium cathode by in-situ electrochem-ical polymerization(ECP) at constant potential.The influences of supporting electrolytes,cell potential and monomer concentration on the performance and morphology of the coatingshave been studied.The coatings in 10~15 pm thickness could be obtained at polymerizationpotential of 7.0 V for 3 h in 1~5 mol/L AN solution of aqueous DMF containing 0.05mol/L AlCl3 as supporting electrolyte.The morphology and structure of the coatings havebeen examined by SEM and FTIR.The mechanism of ECP has been discussed briefly.

Key words: acrylonitrile, aluminium cathode, in-situ electrochemical polymerization