物理化学学报 >> 2003, Vol. 19 >> Issue (06): 528-532.doi: 10.3866/PKU.WHXB20030610

研究论文 上一篇    下一篇

沙林酸印迹聚邻苯二胺纳米膜制备及结构表征

左言军;余建华;黄启斌;赵建军;潘勇;林原   

  1. 北京防化研究院第四研究所,北京 102205; 1中国科学院化学研究所分子科学中心,北京 100101
  • 收稿日期:2002-10-31 修回日期:2003-01-13 发布日期:2003-06-15
  • 通讯作者: 黄启斌 E-mail:Qibinhuang@sohu.com

The Preparation of Poly(ophenylenediamine) Sarin Acid Imprinting Nanometer Layer and Its Structural Characterization

Zuo Yan-Jun;Yu Jian-Hua;Huang Qi-Bin;Zhao Jian-Jun;Pan Yong;Lin Yuan   

  1. The Institute of Chemical Defence, Beijing 102205; 1The Center of Molecular Science, Institute of Chemistry, Chinese
  • Received:2002-10-31 Revised:2003-01-13 Published:2003-06-15
  • Contact: Huang Qi-Bin E-mail:Qibinhuang@sohu.com

摘要: 采用电化学聚合法合成了对有机磷毒剂沙林具有特异识别的聚邻苯二胺(PPD)分子印迹纳米膜(iPPD).利用石英晶体微天平(QCM)证实了印迹效应的存在,并用循环伏安法(CV)、AFM、XPS进行了系统的结构表征.结果表明,分子印迹膜的膜厚约20 nm,膜的表面呈“石林”状,疏松多孔,具有良好的吸附性能.分子印迹主要影响聚合物的三维排列,而聚合物的化学组成没有发生改变.该种分子印迹纳米膜在选择性检测军用毒剂沙林中具有良好的应用前景.

关键词: 分子印迹技术, 电化学聚合, 沙林, 石英晶体微天平(QCM), 表征, 聚邻苯二胺

Abstract: The poly(ophenylenediamine) molecularly imprinting nanometer layer with high sensitivity to phosphorus agent sarin has been prepared by electropolymerization. Quartz crystal microbalance verifies the existence of molecularly imprinting. Cyclovoltammetry,atomic force microscope and Xray photoelectron spectroscopy have been used to characterize these films. The results show that the layer thickness is only 20 nm,and the film surface is hollowprotruding, lax and has many holes. XPS further certifies that molecularly imprinting mostly influence the threedimension arrangement of polymers, but the chemical composition of polymers does not change. The poly(ophenylenediamine) molecularly imprinting nanometer layers have wide application foreground on the selective detection to the nerve agent sarin.

Key words: Molecularly imprinting techonology, Electropolymerization, Sarin(GB)