Synthesis, characterization and dielectric study of polyaniline – Pr2O3composites
| Autor: | A. L. Latha, S. C. Nagaraju, Aashis S. Roy, G. Ramgopal |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Permittivity
Materials science 010401 analytical chemistry 02 engineering and technology Dielectric Conductivity 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Electronic Optical and Magnetic Materials chemistry.chemical_compound chemistry Electrical resistivity and conductivity Polyaniline Charge carrier In situ polymerization Composite material 0210 nano-technology Polarization (electrochemistry) |
| Zdroj: | Ferroelectrics Letters Section. 43:96-104 |
| ISSN: | 1563-5228 0731-5171 |
| DOI: | 10.1080/07315171.2016.1210984 |
| Popis: | Polyaniline – Pr2O3 composites have been prepared by in situ polymerization technique. The prepared composites were characterized by XRD, FTIR and SEM. Further the DC and dielectric study was carried out in two probe method. From DC conductivity, it is found that the conductivity increases with increase in temperature and filler concentration. Dielectric and permittivity studies shows that the resistivity decreases with increase in applied field due to the dipole polarization. The AC conductivity increases with increase in Pr2O3 in polyaniline due to decrease in the bulk resistance by molecular moment of composites segments. Among all composites, 30 wt % of composites shows high conductivity of about 0.3 S/cm followed by other compositions were 40 and 50 wt % shows lowest conductivity due to blocking of charge carriers. Therefore, these composites can be used for different technological applications. |
| Databáze: | OpenAIRE |
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