Bulletin of the Korean Chemical Society

  • 제28권7호
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  • Pages.1104-1108
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  • 2007
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  • 0253-2964(pISSN)
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  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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Preparation, Characterization and Low Frequency a.c. Conduction of Polypyrrole-Lead Titanate Composites

  • Basavaraja, C. (Department of Chemistry and Institute of Functional Materials, Inje University) ;
  • Choi, Young-Min (Department of Chemistry and Institute of Functional Materials, Inje University) ;
  • Park, Hyun-Tae (Department of Chemistry and Institute of Functional Materials, Inje University) ;
  • Huh, Do-Sung (Department of Chemistry and Institute of Functional Materials, Inje University) ;
  • Lee, Jae-Wook (Department of Chemistry, Dong-A University) ;
  • Revanasiddappa, M. (Department of Chemistry, PES School of Engineering) ;
  • Raghavendra, S.C. (Department of Chemistry, PES School of Engineering) ;
  • Khasim, S. (Department of Chemistry, PES School of Engineering) ;
  • Vishnuvardhan, T.K. (Department of Chemistry, Gulbarga University)
  • 발행 : 2007.07.20
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초록

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.

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