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Synthesis of 2‐(9 H ‐carbazole‐9‐yl)ethyl methacrylate: Electrochemical impedance spectroscopic study of poly(2‐(9 H ‐carbazole‐9‐yl)ethyl methacrylate) on carbon fiber
Author(s) -
Ates Murat,
Uludag Nesimi,
Sarac A. Sezai
Publication year - 2011
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.34000
Subject(s) - cyclic voltammetry , dielectric spectroscopy , monomer , methacrylate , materials science , analytical chemistry (journal) , carbazole , sodium perchlorate , scanning electron microscope , capacitance , polymer chemistry , electrochemistry , polymer , electrode , chemistry , organic chemistry , composite material
In this contribution, 2‐(9 H ‐carbazol‐9‐yl) ethyl methacrylate (CzEMA) monomer was chemically synthesized. The monomer characterization was performed by FT‐IR, 1 H‐NMR, 13 C‐NMR, and melting point analysis. The electropolymerization of CzEMA was studied onto carbon fiber microelectrodes (CFMEs) as an active electrode material in 0.1 M sodium perchlorate (NaClO 4 )/acetonitrile (ACN) solution. The electropolymerization experiments were done from 1 m M to 10 m M . The detailed characterization of the resulting electrocoated Poly (CzEMA)/CFME thin films was studied by various techniques, i.e., cyclic voltammetry (CV), Scanning electron microscopy (SEM) and electrochemical impedance spectroscopy (EIS). The effects of initial monomer concentrations (1, 3, 5, and 10 m M ) during the preparation of modified electrodes were examined by EIS. Capacitive behaviors of modified CFMEs were defined via Nyquist, Bode‐magnitude, and Bode‐phase plots. Variation of capacitance values by initial monomer concentration and specific capacitance values are presented. The highest specific capacitance value electrocoated polymer thin film by CV method in the initial monomer concentration of 5 m M with a charge of 52.74 mC was obtained about 424.1 μF cm −2 . © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011