Electropolymerization of aniline derivatives in non-aqueous solution without a proton donor

Yamada, Kazuo; Teshima, Kenjiro; Kobayashi, Norihisa; Hirohashi, Ryo

doi:10.1016/0022-0728(95)04003-7

Cited by 57 publications

(32 citation statements)

References 20 publications

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“…Aminophenols are interesting electrochemical materials since, unlike aniline [1] and other substituted anilines [2], they have two groups (-NH 2 and OH), which could be oxidized. Therefore, they could show electrochemical behavior resembling anilines [1][2][3] and/or phenols [4,5].…”

Section: Introductionmentioning

confidence: 99%

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Spectroelectrochemical study of the oxidation of aminophenols on platinum electrode in acid medium

Salavagione

Arias

Garcés

et al. 2004

Journal of Electroanalytical Chemistry

140

101

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The electrochemical oxidation of para-, meta-and ortho-aminophenols was carried out using a platinum electrode in aqueous acid medium. The spectroscopic results indicate that p-aminophenol suffers hydrolysis giving the formation of hydroquinone/pbenzoquinone. CO 2 has been detected by in situ FTIR spectroscopy as the main soluble oxidation product. The m-aminophenol oxidation produces a blocking polymeric film on the platinum surface. The main oxidation products detected by in situ infrared spectroscopy were CO 2 and quinone. Cyclic voltammetry and in situ FTIR spectroscopy were combined to study the redox processes of the conducting polymer obtained in the o-aminophenol oxidation. The spectroscopic results indicate that phenoxazine units are produced during the oxidation/reduction of poly(o-aminophenol).

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Section: Introductionmentioning

confidence: 99%

“…Therefore, they could show electrochemical behavior resembling anilines [1][2][3] and/or phenols [4,5]. An important factor would be the relative position of the amino and hydroxyl group in the aromatic ring.…”

Section: Introductionmentioning

confidence: 99%

Spectroelectrochemical study of the oxidation of aminophenols on platinum electrode in acid medium

Salavagione

Arias

Garcés

et al. 2004

Journal of Electroanalytical Chemistry

140

101

View full text Add to dashboard Cite

show abstract

“…Aminophenols have been extensively studied because, unlike aniline [1] and other substituted anilines [2], they have two groups ( NH 2 and OH), which could be oxidized. Therefore, they could show electrochemical behavior resembling anilines [1][2][3] and/or phenols [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, they could show electrochemical behavior resembling anilines [1][2][3] and/or phenols [4,5]. In earlier works, we have studied the oxidation of the three isomers of aminophenols using in situ FTIR spectroscopy [6].…”

Section: Introductionmentioning

confidence: 99%

Spectroelectrochemical study of the oxidation of diaminophenols on platinum electrodes in acidic medium

Salavagione

Arias

Garcés

et al. 2005

Electrochimica Acta

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The electrochemical oxidation of 2,3-2,4-and 2,5-diaminophenol, on platinum electrode, in acid medium was studied using cyclic voltammetry, in situ UV-vis and in situ FTIR spectroscopies. The spectroscopic data indicates that 2,4-diaminophenol suffers hydrolysis giving the formation of 2-amino-hydroquinone/2-amino-p-benzoquinone in solution. The oxidation mechanism of 2,5-diaminophenol is similar to the p-phenylenediamine giving 2-hydroxy-p-benzoquinoneimine and its hydrolysis product, 2-hydroxy-p-benzoquinone. The electrochemical results suggest that 2,3-diaminophenol generates a non-electroactive polymeric material on the electrode surface.

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“…Aniline based compounds and polymers have grabbed special attention as a base material for the synthesis of conducting devices [1]. Aminophenol based compounds are especially interesting as electrochemical materials since, unlike anilines [2] and other derivatives [3], they have two groups (-NH 2 and -OH) which can be oxidized. Hence, they show excellent electrochemical nature similar to anilines [3,4] and phenols [5,6].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Physical, Thermal and Spectral Properties of Biofield Treated O-Aminophenol

Trivedi¹,

Tallapragada²,

Branton³

2015

Pharm Anal Acta

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O-aminophenol has extensive uses as a conducting material and in electrochemical devices. The objective of this research was to investigate the influence of biofield energy treatment on the physical thermal and spectral properties of o-aminophenol. The study was performed in two groups; the control group was remained as untreated, while the treated group was subjected to Mr. Trivedi's biofield energy treatment. Subsequently, the control and treated o-aminophenol samples were characterized by X-ray diffraction (XRD), Differential scanning calorimetry (DSC), Thermogravimetric analysis (TGA), surface area analysis, Fourier transform infrared (FT-IR) spectroscopy, and Ultra violet-visible spectroscopy analysis (UV-vis). The XRD analysis showed an increase in peak intensity of the treated o-aminophenol with respect to the control. Additionally, the crystallite size of the treated o-aminophenol was increased by 34.51% with respect to the control sample. DSC analysis showed a slight increase in the melting temperature of the treated sample as compared to the control. However, a significant increase in the latent heat of fusion was observed in the treated o-aminophenol by 162.24% with respect to the control. TGA analysis showed an increase in the maximum thermal decomposition temperature (T max) in treated o-aminophenol (178.17ºC) with respect to the control (175ºC). It may be inferred that the thermal stability of o-aminophenol increased after the biofield treatment. The surface area analysis using BET showed a substantial decrease in the surface area of the treated sample by 47.1% as compared to the control. The FT-IR analysis showed no changes in the absorption peaks of the treated sample with respect to the control. UV-visible analysis showed alteration in the absorption peaks i.e. 211→203 nm and 271→244 nm of the treated o-aminophenol as compared to the control. Overall, the results showed that the biofield treatment caused an alteration in the physical, thermal and spectral properties of the treated o-aminophenol.

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Electropolymerization of aniline derivatives in non-aqueous solution without a proton donor

Cited by 57 publications

References 20 publications

Spectroelectrochemical study of the oxidation of aminophenols on platinum electrode in acid medium

Spectroelectrochemical study of the oxidation of aminophenols on platinum electrode in acid medium

Spectroelectrochemical study of the oxidation of diaminophenols on platinum electrodes in acidic medium

Characterization of Physical, Thermal and Spectral Properties of Biofield Treated O-Aminophenol

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