Studies on biphenyl disulphonic acid doped polyanilines: Synthesis, characterization and electrochemistry

Rao, C. Raghavendra; Muthukannan, R; Vijayan, M.

doi:10.1007/s12034-012-0315-5

Cited by 6 publications

(3 citation statements)

References 45 publications

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“…This peak was not displayed in acidic medium, and therefore pointed out a difference in the path for structural changes in the PANI at pH 5.7 than that in acidic medium. Importantly, the peak at 550 nm has been previously ascribed to the presence of quinoid structures in the PANI film (such as EB, PNB, and PNS), , and additionally, this band is known to change with dopant concentration and nature, being linked to polaron- π* transitions in doped PANI . So that, this peak can be associated with the presence of either PNS and/or PNB.…”

Section: Resultsmentioning

confidence: 93%

“…Importantly, the peak at 550 nm has been previously ascribed to the presence of quinoid structures in the PANI film (such as EB, PNB, and PNS), 36,37 and additionally, this band is known to change with dopant concentration and nature, being linked to polaron-π* transitions in doped PANI. 38 So that, this peak can be associated with the presence of either PNS and/or PNB. Finally, all the described trends in both media were found to be rather the same for conditioned PANI films compared to nonconditioned ones (SI Figure S5c and d).…”

Section: Analytical Chemistrymentioning

confidence: 95%

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Polyaniline Films as Electrochemical-Proton Pump for Acidification of Thin Layer Samples

2019

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Here, we provide the first experimental evidence of proton release from polyaniline (PANI) films subjected to anodic potentials at environmental pHs. We conducted an extensive characterization of unpolarized/polarized PANI filmssynthesized by traditional sequential voltammetric scanningby using spectroelectrochemistry, synchrotron radiation-X-ray photoelectron spectroscopy, near edge X-ray absorption fine structure, and potentiometric pH sensing in the vicinity of the PANI layer. This new insight enables the utilization of PANI as a proton pump, which is actively tuned through an electrochemical pulse, so as to controllably acidify well-confined thin layer samples. Furthermore, we demonstrate the analytical significance of this system by measuring the alkalinity of artificial and natural water samples by using two faced planar PANI electrodes, one working as a proton source and the other one as pH electrode. Finally, the impact of this approach is 2-fold: (i) all-solid-state electrode materials may be used with devisible consequences in miniaturized and implementable submersible probes, and (ii) rapid determination of alkalinity as compared to traditional approaches together with a versatility in pH adjustment in any kind of sample, among other applications.

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Section: Resultsmentioning

confidence: 93%

Section: Analytical Chemistrymentioning

confidence: 95%

Polyaniline Films as Electrochemical-Proton Pump for Acidification of Thin Layer Samples

2019

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“…For instance, aniline molecules substituted by alkoxy, alkyl, acyl halide, alkyl sulfonate and benzyl sulfonate groups have been reported. These side chains can be either ring substituted or N ‐substituted . The N ‐substituted PANIs have obtained better processability; however, their conductivity has been greatly reduced .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of water‐soluble conductive copolymer based on polyaniline

Heydari

Moghadam

Fareghi

et al. 2015

Polymers for Advanced Techs

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Synthesis and characterization of polyaniline-grafted poly(styrene-alt-maleic anhydride) (PANI-g-PSMA) was carried out to obtain conductive comb copolymers with highly improved processability. First, polyaniline (PANI) was prepared in nano-scale by chemical synthesis under ultrasonic irradiation. Then the poly(styrene-alt-maleic anhydride) (PSMA) was synthesized by free radical polymerization. Moreover, the PANI was grafted on the PSMA backbone to prepare a comb-like conductive copolymer for improving its processability as a new method. The products were characterized by Fourier transform infrared, ultraviolet-visible spectroscopy and X-ray diffraction patterns. Morphology of the samples was also investigated by scanning electron microscopy images. Finally, the solubility and conductivity of the products were studied, and it resulted in high solubility of the products in water and other common organic solvents in comparison to the pure PANI.

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Investigations of conducting polymers, carbon materials, oxide and sulfide materials for supercapacitor applications: a review

Kumar¹,

Nagarani²,

Sethuraman³

et al. 2022

Chem. Pap.

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Studies on biphenyl disulphonic acid doped polyanilines: Synthesis, characterization and electrochemistry

Cited by 6 publications

References 45 publications

Polyaniline Films as Electrochemical-Proton Pump for Acidification of Thin Layer Samples

Polyaniline Films as Electrochemical-Proton Pump for Acidification of Thin Layer Samples

Synthesis of water‐soluble conductive copolymer based on polyaniline

Investigations of conducting polymers, carbon materials, oxide and sulfide materials for supercapacitor applications: a review

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