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A simple one-step electrosynthesis of poly(pyrrole-sulfated β-cyclodextrin) films |
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| Authors: | Khalid R Temsamani Harry B Mark Wlodzimierz Kutner Apryll M Stalcup |
| Institution: | (1) Chemistry Department, University of Cincinnati, P.O. Box 210172, Cincinnati, OH 45221, USA,;(2) Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland,;(3) Permanent address: Laboratoire de Bioelectrochimie, Département de Chimie, Faculté des Sciences de Tétouan, Université Abdelmalek Essaadi M'Hannech II, B.P. 2121, 93000 Tétouan, Morocco, e-mail: krt@fst.ac.ma, |
| Abstract: | A functionalized stable film of poly(pyrrole-sulfated β-cyclodextrin) has been obtained electrochemically in LiClO4 aqueous solution using a simple 1:1 mixture of pyrrole (Py) monomer and sulfated β-cyclodextrin (SβCD). Different cyclic voltammetric behavior is obtained for polypyrrole (PPy) and poly(Py-βSCD) during electrosynthesis. Scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX) measurements on the two films have confirmed the presence of CD in the films and show that CD preferentially dopes the polymer even in the presence of a large excess of perchlorate supporting electrolyte. The morphology of the new polymers shows a more organized system under SEM examination. Contrary to conventional PPy films, this new polymer offers a wide potential range for electroanalytical exploration from selective electrodes to preconcentration/sampling devices. Electronic Publication |
| Keywords: | Sulfated β -cyclodextrin Polypyrrole conducting polymer Electropolymerization Doping anion Cation uptake |
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