Electrical, thermal and spectroscopic studies of Te doped polyaniline

Kazim, Samrana; Ali, Vazid; Zulfequar, M.; Haq, M. Mazharul; Husain, M.

doi:10.1016/j.cap.2005.11.072

Cited by 49 publications

(31 citation statements)

References 33 publications

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“…XRD patterns of doped samples show the crystallinity. The conductivity of polymers depends on various parameters such as doping level, formation of polarons and bipolarons [40], the semi-crystalline nature of polymers arises owing to the systematic alignment of polymer chain folding or by the formation of single or multiple helices, for part of their length [41]. The pure PANI exhibited a broad hump at position 2θ = 21˚ and 25˚ as shown in the Figure 3(a).…”

Section: Characterizationmentioning

confidence: 95%

Synthesis and Characterization of Perfluorooctanoic Acid Anionic Surfactant Doped Nanosize Polyaniline

Mahalakshmi¹,

Vedhi²

2014

OJSTA

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Surfactant doped polyaniline was synthesized in the aqueous solution of aniline and anionic surfactant of perfluorooctanoic acid (PFO) by chemical synthesis using potassium peroxy disulphate as an oxidant by varying the aniline to surfactant ratio. The solubility of the chemically prepared surfactant doped polyaniline (PANI) was ascertained and it showed good solubility in dimethyl sulfoxide (DMSO), dimethylformamide (DMF), acetone, acetonitrile, ethanol, aceticacid, trichloroethylene, dichloromethane, tetrahydrofuran, ethylacetate, diethylether, toluene, chloroform and sparingly soluble in n-hexane and water. The prepared polymers were characterized by fourier transform infrared spectroscopy (FTIR), UV-visible, X-ray diffraction (XRD), cyclic voltammetric (CV), EIS and scanning electron microscopy (SEM). The analysis of UV-visible and FTIR showed that aniline has been polymerized to PANI in its conducting emeraldine form. FTIR spectra showed that the peaks at 1670, 3315 and 1400 cm −1 corresponded to PFO. FTIR spectra showed that amine peak observed at 1593 cm −1 was shifted to lower wave number due to the interaction between PANI and the surfactant. SEM analysis showed that the variation in morphology of doped PANI was predominantly dependent on the concentration of the surfactant. Elemental analysis was done by energy dispersive spectroscopic (EDAX) which shows the presence of C, N, O, S and F. XRD pattern showed that the formation of nanosized (18 nm) and crystalline polymer. CV studies of the synthesized polymer exhibited good adherent behavior on electrode surface. It exhibited three oxidation peaks at approximately 0.283 V, 0.541 V and 0.989 V and two reduction peaks at 0.1421 and 0.3854 V. Electrical conductivity of PFO doped PANI was studied by impedance spectroscopic method.

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Section: Characterizationmentioning

confidence: 95%

Synthesis and Characterization of Perfluorooctanoic Acid Anionic Surfactant Doped Nanosize Polyaniline

Mahalakshmi¹,

Vedhi²

2014

OJSTA

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“…[3,[5][6][7][9][10][11][12][15][16][17][18][19] The peaks in the spectrum of the undoped PANI were observed at 3443 cm −1 (N-H stretching mode), 1558 cm −1 (C=C stretching of the quinoid ring), 1467 cm −1 (C=C stretching of the benzenoid ring), 1385 cm −1 (C-N stretching mode for quinoid units), 1294 cm −1 (C-N stretching mode), 1236 cm −1 (C-N stretching mode for quinoid units), 1096 cm −1 (C-H bending), and 791 cm −1 (C-H stretching). [2,3,[5][6][7][9][10][11][12][15][16][17][18][19][20][21] Absorption bands at 791, 1236, 1294, and 1558 cm −1 are characteristic peaks of the ES form of PANI. [5,6,9,17] The N-H stretching band observed, for 3443 cm −1 of undoped PANI, gradually decreases with Se doping, which might be due to interaction between metal cations and nitrogen atoms in the polymer chain.…”

Section: Ft-ir Results For Pani and Pani/se Compositesmentioning

confidence: 99%

“…These composites are usually prepared by doping metal or metallic salts into the conducting polymers and their derivatives by different methods and under various conditions. [5,7,9,[12][13][14][15]17,22] The type of conducting polymer used, polymerization conditions, and physical/chemical properties of the doping material are very important in terms of the properties of the composite materials to be prepared.…”

mentioning

confidence: 99%

Synthesis, Characterization, and AC Conductivity of Polyaniline/Selenium Composites

Özkazanç

Zor

Özkazanç

2012

Journal of Macromolecular Science, Part B

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This study reports structural and thermal properties and temperature-dependent alternating current (AC) conductivity of polyaniline/selenium (PANI/Se) composites in emeraldine salt form prepared by a chemical polymerization method. Fourier transform infrared spectroscopy showed that the doping process significantly affected the N-H bond in PANI chain. The free energy change, which was calculated from the Langmuir adsorption isotherm, showed that Se was electrostatically adsorbed on PANI molecules. From the scanning electron microscopy images it was determined that morphological changes caused by the doping process on PANI surface could affect conductivity. Thermal analysis, which was performed with differential scanning calorimetry, showed that the addition of Se increased the degradation temperature of PANI. Depending on the doping level, significant increase was observed in the AC conductivity of PANI, approximately 11, 13, and 17 times for 300, 350, and 400 K temperatures respectively.

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“…Polyaniline is the most studied polymer of this class. Recently, metalsalts doping in polyaniline has been reported [4,5].…”

Section: Introductionmentioning

confidence: 99%

Effects of 60MeV C5+ ion irradiation on PmT–PVC and p-TSA doped PoT–PVC blends

Lakshmi

Siddiqui

Ali

et al. 2008

Nuclear Instruments and Methods in Physics Research Section B:

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Electrical, thermal and spectroscopic studies of Te doped polyaniline

Cited by 49 publications

References 33 publications

Synthesis and Characterization of Perfluorooctanoic Acid Anionic Surfactant Doped Nanosize Polyaniline

Synthesis and Characterization of Perfluorooctanoic Acid Anionic Surfactant Doped Nanosize Polyaniline

Synthesis, Characterization, and AC Conductivity of Polyaniline/Selenium Composites

Effects of 60MeV C5+ ion irradiation on PmT–PVC and p-TSA doped PoT–PVC blends

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