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conferenceseries
.com
Polymer Sciences | ISSN: 2471-9935
October 02-03, 2017 Chicago, USA
3
rd
International Conference on
Polymer Science and Engineering
Studies of conducting polymers nanocomposites and its applications
M V N Ambika Prasad
1
, M Sasikala
2
and
Chakradhar Sridhar B
1
1
Gulbarga University, India
2
Godutai College of Engineering for Women, India
T
he Polyaniline (PANI) has emerged as one of the most promising conducting polymers, because of its wide spread applications
and due to the combination of unique properties like simple preparation and doping procedure, good environmental stability,
relatively high conductivity and low cost. The inorganic–organic composites containing polymer as the organic base and Gallium
oxide, Vanadium Pentoxide and Indium oxide as inorganic part have been used for studying its gas sensing. These composites
have been synthesized by insitu deposition technique by placing fine grade Ga
2
O
3
, In
2
O
3
and V
2
O
5
in polymerization mixture of
aniline. The results are well supported by FTIR spectra, SEM, XRD and Conductivity measurements. High temperature, conductivity
measurements show thermal activated behavior. It is observed that electrical resistance increases with an increase in the temperature.
In case of PANI-V
2
O
5
,PANI-In
2
O
3
and PANI-Ga
2
O
3
composites both the PANI sensing mechanism of swelling and sensing
mechanism of surface charge are responsible for variation of resistance within the sensing material. Therefore, it is observed that
PANI-V
2
O
5
,PANI-In
2
O
3
and PANI-Ga
2
O
3
composites to be a competent sensing material for LPG and this may be due to formation of
surface charge and presence of capillary pores. Similar behavior for the Polymer / Nano metal oxide composites such has Polyaniline-
Tungsten oxide, Polyaniline-Cobalt oxide and Polyaniline- Cerium oxide have been observed for its humidity and Gas sensing.
Similarly,conducting polymers have found to have applications in Biology in Bio sensors,anti bacterial action, pigeon pea plant
growth, microwave absorbers etc.
Biography
M V N Ambika Prasad has received MSc degree in Physics from Osmania University, Hyderabad and PhD in Physics from Indian Institute of Technology (IIT),
New Delhi. He is currently a Professor of Physics at Gulbarga University, Gulbarga. His research interest includes conducting polymer and nanocomposites,
understanding the electrical and thermal behaviour of the materials at nano size and sensing behaviors of various conducting polymers exposed to gas and
humidity.
prasad1_amb@rediffmail.comM V N Ambika Prasad et al., Polym Sci, 3:3
DOI: 10.4172/2471-9935-C1-002