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 E-mail:zwdeng2007@sinano.ac.cn
  • 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).

Abstract:

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

MSC2000: 

  • O641