Pradyumna Mogre; Sharanabasava V. Ganachari; Jayachandra S. Yaradoddi
Abstract
Polyaniline fibres were synthesized by chemical oxidative polymerization using different ratios of monomers in the feed in HCl medium. The synthesized polymers were characterized by employing Fourier transform infrared, UV-visible, X-ray diffraction techniques for understanding the details of the structure ...
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Polyaniline fibres were synthesized by chemical oxidative polymerization using different ratios of monomers in the feed in HCl medium. The synthesized polymers were characterized by employing Fourier transform infrared, UV-visible, X-ray diffraction techniques for understanding the details of the structure of the synthesized polymers. Morphological, thermal, and electrical conductivity of the as synthesized polymers were also studied by employing scanning electron microscopy, thermogravimetric analysis, and electrical conductivity, respectively. A three-step thermal degradation was observed for the polymer. It was observed that yield and intrinsic viscosity of polymer is not regularly dependant on monomer concentration in the feed. The polyaniline show better conductivity than Polythiophene. Copyright © 2018 VBRI Press.
Yesappa L; Niranjana M; Sharanappa Chapi; Archana K.; Raghu S.; Devendrappa H
Abstract
Bio-intercalation based Polyaniline (PANI)-Aloe vera (AV) with Lithium Perchlorate (LiClO4) composites has been synthesized by In-situ chemical reaction method. The composite was employed characterizations with help of Fourier Transform Infrared (FT-IR) Spectroscopy and Scanning Electron Microscopy (SEM) ...
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Bio-intercalation based Polyaniline (PANI)-Aloe vera (AV) with Lithium Perchlorate (LiClO4) composites has been synthesized by In-situ chemical reaction method. The composite was employed characterizations with help of Fourier Transform Infrared (FT-IR) Spectroscopy and Scanning Electron Microscopy (SEM) to know the chemical interaction and morphology of the composites. From SEM result it was noticed that morphology became changes significantly with reduce porosity. The Ultra Violet Absorption (UV-Vis) study shows that absorption increases as well as maximum peak shifts and PAL10 red shifts in visible region at 615nm. These results manifest that PANI-AV/LiClO4 (PAL) composites are the promising materials for solar cell, LED’s and electrical applications. Copyright © 2017 VBRI Press
Niranjana M; Sharanappa Chapi; Yesappa L; Archana K; Raghu S; Devendrappa H
Abstract
Polyaniline (PANI) composites doped with Vanadium pentoxide (V2O5) of different weight percentage using dodecylbenzene sulfonic acid (DBSA) as surfactant was prepared by in-situ chemical oxidation reaction method. Here ammonium persulphate was used as an oxidizing agent. The formation of composite (PANI/DBSA/V2O5) ...
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Polyaniline (PANI) composites doped with Vanadium pentoxide (V2O5) of different weight percentage using dodecylbenzene sulfonic acid (DBSA) as surfactant was prepared by in-situ chemical oxidation reaction method. Here ammonium persulphate was used as an oxidizing agent. The formation of composite (PANI/DBSA/V2O5) was confirmed with the help of analytical studies like scanning electron microscopy (SEM) and UV/Vis spectroscopy. SEM images show a substantial change in PANI morphology after incorporation of vanadium pentoxide. The optical characterizations by UV-Vis absorption spectroscopy show the increased absorption with addition of V2O5. The electrical conductivity has been studied in the frequency range of 20 Hz to 1MHz and it is found that PANI/DBSA:2%(V2O5) shows high electrical conductivity compared to pure PANI and other composites. It is observed that the dielectric constant and dielectric loss increase with concentration of V2O5. PANI/DBSA/V2O5 composites are most promising material for many electrical and potential applications. This semiconducting polymer combination of PANI and Vanadium pentoxide (V2O5) which produce hybrid material, behaves as semiconductor at low temperatures; this behavior is predicted by results of dielectric properties studied. Copyright © 2017 VBRI Press.
