Electrical Conductivity Response of Poly(Phenylene-vinylene)/ Zeolite Composites Exposed to Ammonium Nitrate

Electrical Conductivity Response of Poly(Phenylene-vinylene)/ Zeolite Composites Exposed to Ammonium Nitrate

Poly(p-phenylenevinylene) (PPV) was chemically synthesized via the polymerization of p-xylene-bis(tetrahydrothiophenium chloride) monomer and doped with H2SO4. To improve the electrical conductivity sensitivity of the conductive polymer, Zeolites Y (Si/Al = 5.1, 30, 60, 80) were added into the condu...

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Bibliographic Details
Main Authors: Jirarat Kamonsawas, Anuvat Sirivat, Sumonman Niamlang, Pimpa Hormnirun, Walaiporn Prissanaroon-Ouajai
Format: Article
Language:English
Published: MDPI AG 2010-06-01
Series:Sensors
Subjects:
conductive polymer
gas sensor
poly(p-phenylenevinylene)
ammonium nitrate
zeolite Y
Online Access:http://www.mdpi.com/1424-8220/10/6/5590/
Description
Summary:Poly(p-phenylenevinylene) (PPV) was chemically synthesized via the polymerization of p-xylene-bis(tetrahydrothiophenium chloride) monomer and doped with H2SO4. To improve the electrical conductivity sensitivity of the conductive polymer, Zeolites Y (Si/Al = 5.1, 30, 60, 80) were added into the conductive polymer matrix. All composite samples show definite positive responses towards NH4NO3.The electrical conductivity sensitivities of the composite sensors increase linearly with increasing Si/Al ratio: with values of 0.201, 1.37, 2.80 and 3.18, respectively. The interactions between NH4NO3 molecules and the PPV/zeolite composites with respect to the electrical conductivity sensitivity were investigated through the infrared spectroscopy.
ISSN:1424-8220

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