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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 28, Number 7
BKCSDE 28(7)
July 20, 2007

Title	Preparation, Characterization and Low Frequency a.c. Conduction of Polypyrrole-Lead Titanate Composites
Author	C. Basavaraja, Young Min Choi, Hyun Tae Park, Do Sung Huh*, Jae Wook Lee, M. Revanasiddappa, S. C. Raghavendra, S. Khasim,T. K. Vishnuvardhan
Keywords	Composites, Polypyrrole, Conductivity, Dielectric behavior
Abstract	Conducting Polypyrrole-lead titanate (PPy/PbTiO₃) composites have been prepared by in situ deposition technique by placing different wt.% of fine grade powder of PbTiO₃ (10, 20, 30, 40, and 50%) during polymerization of pyrrole. The composites formed were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and thermogravimetric analysis (TGA), and these data indicate that PbTiO₃ particles are dominating with an increase in crystallinity as well as thermal stability of the composites. The results on the low frequency dielectric studies which are obtained in the form of pressed pellet state are interpreted in terms of Maxwell Wagner polarization, which are responsible for the dielectric relaxation mechanism and frequency dependence of conductivity.
Page	1104 - 0
Full Text	PDF

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