Electropolymerization of 2-Amino-4-Phenylthiazole and Characterization of the Obtained Polymer Films

Sayyah, S. M.; El-Deeb, M. M.; Abdel-Rehim, S. S.

doi:10.1080/00914030490502454

Cited by 16 publications

(2 citation statements)

References 44 publications

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“…The electroformation of azo dye-based polymeric films is widely discussed in the literature. ,− These studies focus on azobenzene electrosynthesis, where the application of an upper limit potential of +0.80 V generates radical cations of the amino groups, which react with each other, forming a nitrogen–nitrogen bond (hydrazine), which is subsequently oxidized, producing 2H + and giving rise to an azo bond . Therefore, the formation of the azopolymeric film during anodic sweep begins after the potential of +0.80 V vs SCE is reached, and the terminal amino groups of the monomers are oxidized to a radical cation (BBY •+ ) in acidic medium (step 1Scheme ).…”

Section: Resultsmentioning

confidence: 99%

Mechanism of Nanocomposite Formation in the Layer-by-Layer Single-Step Electropolymerization of π-Conjugated Azopolymers and Reduced Graphene Oxide: An Electrochemical Impedance Spectroscopy Study

2020

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This work presents a study of the formation mechanism of electrochemically deposited alternating layers of azopolymer and graphene oxide, as well as a systematic study of the physicochemical characteristics of the resulting nanocomposite films by electrochemical impedance spectroscopy. The nanocomposite films were constructed by cyclic electropolymerization, which allowed for the assembly of thin films with alternating azopolymers and reduced graphene oxide (rGO) layers in one step. Morphological characterizations were performed by atomic force microscopy and scanning electron microscopy and verified that the electrodeposition of the poly(azo-BBY) polymeric film occurred during the anodic sweep, and the deposition of graphene oxide sheets took place during the cathodic sweep. By analyzing the electrochemical impedance spectra using equivalent circuit models, variations in the resistance and capacitance values of the system were monitored as a function of the amount of electrodeposited material on the fluorine doped tin oxide electrode. In addition, the interfacial phenomena that occurred during the electroreduction of the rGO sheets were monitored with the same method.

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Section: Resultsmentioning

confidence: 99%

Mechanism of Nanocomposite Formation in the Layer-by-Layer Single-Step Electropolymerization of π-Conjugated Azopolymers and Reduced Graphene Oxide: An Electrochemical Impedance Spectroscopy Study

2020

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“…Sayyah et al7 studied the electropolymerization and characterization of 2‐amino‐phenyl‐thiazole on Pt‐electrode in acid medium under different reaction conditions. They obtain an amorphous, homogeneous, and compact adhering film on Pt‐electrode.…”

Section: Introductionmentioning

confidence: 99%

Electropolymerization kinetics of a binary mixture of o‐phenylenediamine and 2‐aminobenzothiazole and characterization of the obtained polymer films

Sayyah

El‐Rehim

Kamal

et al. 2010

J of Applied Polymer Sci

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Poly(o-phenylenediamine-co-2-aminobenzothiazole), P(oPD-co-2ABT), has been synthesized electrochemically from an aqueous acid medium. The initial rate of electrocopolymerization reaction on platinum electrode is small, and the rate law is Rate2.08 . The apparent activation energy (E a ) is found to be 57.44 kJ mol À1 . The polymer films obtained have been characterized by cyclic voltammetry, X-ray diffraction, elemental analysis, TGA, scanning electron microscopy, and IR-spectroscopy. The mechanism of the electrochemical polymerization reaction has been discussed. The monomer reactivity ratios (r 1 and r 2 ) were calculated using Fineman-Rö ss method.

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Kinetic studies on the electrochemical polymerization of 3‐chloroaniline and characterization of the obtained polymer films

Sayyah

El‐Rehim

El-Deeb

2004

J of Applied Polymer Sci

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Electropolymerization of 3-chloroaniline on a platinum electrode in an acid medium was carried out under different reaction conditions of temperature, current density and hydrochloric acid and monomer concentrations with duration time. The initial rate of the electropolymerization reaction was small, and the orders were 0.99, 0.96 and 1.2 with respect to current density and acid and monomer concentrations, respectively. The apparent activation energy was 41.6 kJ/mol. The rate law was R p ϭ k 2 (Current density) . The obtained polymer films were characterized by 1 H-NMR, elemental analysis, IR spectroscopy, and cyclic voltammetry. The mechanism of the electropolymerization reaction is also discussed. Thermogravimetric analysis was used to confirm the proposed structure and determination of the number of water molecules in the polymeric chain unit. X-ray and scanning electron microscopic analysis are used to investigate the surface morphology.

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Electropolymerization of 2-Amino-4-Phenylthiazole and Characterization of the Obtained Polymer Films

Cited by 16 publications

References 44 publications

Mechanism of Nanocomposite Formation in the Layer-by-Layer Single-Step Electropolymerization of π-Conjugated Azopolymers and Reduced Graphene Oxide: An Electrochemical Impedance Spectroscopy Study

Mechanism of Nanocomposite Formation in the Layer-by-Layer Single-Step Electropolymerization of π-Conjugated Azopolymers and Reduced Graphene Oxide: An Electrochemical Impedance Spectroscopy Study

Electropolymerization kinetics of a binary mixture of o‐phenylenediamine and 2‐aminobenzothiazole and characterization of the obtained polymer films

Kinetic studies on the electrochemical polymerization of 3‐chloroaniline and characterization of the obtained polymer films

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