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Polímeros

Print version ISSN 0104-1428On-line version ISSN 1678-5169

Abstract

SHIMOGA, Ganesh; SHIN, Eun-Jae  and  KIM, Sang-Youn. Thermal, dielectric and catalytic behavior of palladium doped PVC films. Polímeros [online]. 2019, vol.29, n.2, e2019028.  Epub July 04, 2019. ISSN 1678-5169.  https://doi.org/10.1590/0104-1428.08718.

The present paper discusses the aspects of synthesizing palladium (Pd) doped (Pd+2 and Pd0) poly(vinyl chloride) (PVC) using simple solution cast technique. The Pd loading to PVC was altered from 2.5% to 10.0% and the material properties were studied using UV-Visible spectroscopy (UV-Vis), X-ray diffraction (XRD), Energy-dispersive X-ray spectroscopy (EDX) and Field Emission Scanning Electron Microscopy (FE-SEM). Thermal behavior of all the samples were studied using thermogravimetric analysis (TGA) and Broido’s method was employed to analyse the kinetic parameters involved in different degradation steps. All the composite films were sandwitched between disk shape gold electrodes; electrical contacts were established to study the dielectric properties. The influence of Pd loading on the dielectric properties of PVC were examined. Finally, the catalytic properties of Pd0 composites were studied using standard model reduction reaction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) in the presence of aqueous sodium borohydride and reported.

Keywords : dielectric; heterogeneous catalysis; palladium nanocomposites; poly(vinyl chloride); thermal analysis.

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