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The preparation of molecularly imprinted poly( o ‐phenylenediamine) membranes for the specific O,O ‐dimethyl‐α‐hydroxylphenyl phosphonate sensor and its characterization by AC impedance and cyclic voltammetry
Author(s) -
Liu Xingyuan,
Li Chunya,
Wang Changfa,
Li Ting,
Hu Shengshui
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.23514
Subject(s) - cyclic voltammetry , membrane , materials science , polymer , molecularly imprinted polymer , chemical engineering , molecular imprinting , monomer , polymer chemistry , phosphonate , electrode , electrochemistry , chemistry , organic chemistry , composite material , selectivity , biochemistry , engineering , catalysis
A molecularly imprinted polymer (MIP) membrane for sensing O , O ‐dimethyl‐α‐hydroxylphenyl phosphonate (DHP) has been prepared by electropolymerizing o ‐phenylenediamine on the glassy carbon electrodes in the presence of DHP. Optimization studies with the aim to enhance insulating properties and response kinetics of the polymer membrane were carried out with respect to template molecular concentration, the monomers concentration, the polymer membrane thick and scan rate. Cyclic voltammetry and electrochemical impedance have been used to characterize the behavior of MIP polymer membrane. The capacitive measurements were also certified the imprinting effect of the polymer layers. The experimental results showed that DHP imprinted polymer has better recognition property for the template than that of a blank polymer. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 2222–2227, 2006