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- W2550057749 abstract "In situ polymerization of polyaniline (PANI) was carried out in the presence of ultrasonicated fly ash (FA) to synthesize Polyaniline-fly ash composites (PANIFA) by chemical oxidation method. The PANIFA composites have been synthesized with various compositions (10, 20, 30, 40 and 50 wt %) of fly ash in polyaniline. Ultrasonication of as-received fly ash provided the energy for chemical reaction between fly ash contents and charged backbone of PANI, leading to significant interaction of PANI with fly ash. The surface morphology of these composites was studied with scanning electron micrograph (SEM). The polyaniline-fly ash composites were characterized by employing X-ray diffractometry (XRD) and UV-Vis Spectroscopy. A dielectric property of conducting polyaniline fly ash composites has been investigated as function of frequency. By incorporating fly ash into polyaniline, dielectric constant (e') was found to be improved as compared to that of pure polyaniline. It was also noticed that dielectric constant of all composites found to be decreased with increasing frequency due to dielectric relaxation. The dielectric loss (e) of composites shows similar trends as that of dielectric constant. The results obtained for these composites are of greater scientific and technological interest for good quality of capacitor." @default.
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- W2550057749 date "2015-01-01" @default.
- W2550057749 modified "2023-09-22" @default.
- W2550057749 title "Dielectric Properties of Ultrasonicated Fly Ash and Polyaniline Composites" @default.
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