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Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.18 [2011] >
IJCT Vol.18(6) [November 2011] >
| Title: | Synthesis and characterization of polypyrrole–polyvinyl alcohol composite film with various organic acids dopants and their gas sensing behavior |
| Authors: | Dupare, D B
Shirsat, M D
Aswar, A S |
| Keywords: | Conducting polymer
Polypyrrol
Thin films
TMA gas sensor |
| Issue Date: | Nov-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Polypyrrole–polyvinyl
alcohol (PPY-PVA ) composite films with various organic acids such as camphor
sulphonic acid (CSA), dodecyl benzene sulphonic acid (DBSA) and p-toluene sulphonic acid (p-TSA), have been synthesized in situ
by chemical oxidative polymerization method. These synthesized films are
characterized by using electrochemical technique, conductivity measurement,
UV-visible spectroscopy, FTIR and SEM. It is observed that the PPY-PVA
composite films provide good electrochemical properties, conductivity as well
as polymer matrix with uniform and porous surface morphology which can be used
for the immobilization of biocomponent. The current-voltage characterization
reveals that these films are conducting in nature with ohmic behavior. The
PPY-PVA doped composites thin films are used for different concentrations (ppm)
of trimethyl ammonia and ammonia gas for their sensitivity at room temperature
(304K). Results reveal that with organic acids dopant electrical property and
environmental stability of PPY-PVA composites film are enhanced. |
| Page(s): | 446-450 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.18(6) [November 2011]
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