Acta Phys. -Chim. Sin. ›› 2011, Vol. 27 ›› Issue (06): 1451-1456.doi: 10.3866/PKU.WHXB20110628

• ELECTROCHEMISTRY AND NEW ENERGY • Previous Articles     Next Articles

Electrosynthesis and Characterization of Metal Chelate Imprinted Poly-o-Phenylenediamine Films

WANG Lian-Yan1, LU Feng2, WU Fu-Quan3, GU Ren-Ao2, YAO Jian-Lin2, ZHANG Hai-Lu1, DENG Zong-Wu1   

  1. 1. Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215123, Jiangsu Province, P. R. China;
    2. College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu Province, P. R. China;
    3. Suzhou Environmental Monitor Centre, Suzhou 215004, Jiangsu Province, P. R. China
  • Received:2011-01-14 Revised:2011-04-12 Published:2011-05-31
  • Contact: DENG Zong-Wu
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (21073226) and Science and Technology Planning Project of Suzhou, China (SS0852).


Novel molecularly imprinted polymers (MIPs) were synthesized by the electrochemical polymerization of o-phenylenediamine (o-PD) using cyclic voltammetry in the presence of Cu(II)- ethylenediaminetetraacetate chelate (Cu(II)-EDTA), which acted as a template. The resultant polymers were characterized by UV-Vis spectroscopy, X-ray photoelectron spectroscopy (XPS), differential pulse voltammetry (DPV), and quartz crystal microbalance (QCM). UV-Vis spectral analysis indicated that a higher degree poly-o-phenylenediamine (PoPD) was obtained at pH≥5.0. XPS analysis clearly showed the successful embedding of a Cu(II)-EDTA chelate in the PoPD film and, therefore, hydrogen bonding was a major interaction between the template and the PoPD film. DPV analysis confirmed the successful removal of the template from the PoPD film. The QCM test showed that the Cu(II)-EDTA imprinted PoPD film had good Cu(II)-EDTA chelate sensitivity.

Key words: o-Phenylenediamine, Chelate, Molecularly imprinted polymer, Cyclic voltammetry, Quartz crystal microbalance