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In situ measurement of pH in the interior of conducting polymer microtubules

DSpace at IIT Bombay

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Field Value
 
Title In situ measurement of pH in the interior of conducting polymer microtubules
 
Creator NATH, ARCHANA
KANUNGO, MANDAKINI
CONTRACTOR, AQ
 
Subject oxidation
plastic films
polymers
ph effects
 
Description Visible spectral absorption studies of an indicator trapped in the microenvironment of polypyrrole (PPY) and polyaniline (PANI) films were used to investigate the change in pH accompanying changes in oxidation state of the polymer. An indicator, bromophenol blue was incorporated in the conducting polymer film during the electropolymerization process. In situ UV–vis spectra of these films were recorded in aqueous solution of KCl. The results obtained show that with increasing potential of the film, the pH of the microenvironment decreases both for PPY and PANI. The change in pH is greater in the potential range where the change in electronic conductivity is also greater.
 
Publisher Elsevier
 
Date 2009-03-02T09:26:59Z
2011-11-25T18:12:36Z
2011-12-26T13:06:40Z
2011-12-27T05:54:41Z
2009-03-02T09:26:59Z
2011-11-25T18:12:36Z
2011-12-26T13:06:40Z
2011-12-27T05:54:41Z
2003
 
Type Article
 
Identifier Journal of Electroanalytical Chemistry 557, 119-125
0022-0728
http://dx.doi.org/10.1016/S0022-0728(03)00354-1
http://hdl.handle.net/10054/823
http://dspace.library.iitb.ac.in/xmlui/handle/10054/823
 
Language en