Electrochemical copolymerization of aniline and para-phenylenediamine on IrO2-coated titanium electrode

Yang, Chen-Cheng; Wen, Ten‐Chin

doi:10.1007/bf00247789

Cited by 85 publications

(49 citation statements)

References 29 publications

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“…10 In the recent years, copolymers comprising aniline and substituted anilines have received greater attention. [11][12][13][14][15] These copolymers consist of units of aniline and substituted aniline in their backbone and possess properties different from the respective pristine homopolymers. Because of their differences in structures and physical/chemical properties from conventional polyaniline, to some extent, they could act as excellent materials for applications instead of the conventional polyaniline in some aspects.…”

Section: Introductionmentioning

confidence: 99%

Structure and electrochemical properties of polyamide and polyaniline

Ding

Chao

Zhang

et al. 2007

J of Applied Polymer Sci

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Electrochemical properties of well-defined molecular structured polyamide with amine-capped aniline pentamer in the main chain and conventional polyaniline were investigated and discussed. CV results suggest that the synthesized polyamide shows a relatively complicated redox process than conventional polyaniline during potential cycling. Differences in ESI characterization revealed that the synthesized polyamide exhibits higher electronic conductivity and lower resistance than the conventional polyaniline. The analysis of molecular configuration based upon the quantum chemistry calculation reveal that the difference in electrochemical activity and conductivity should be ascribed to the influence of system energy, skeleton conjugation, and the Fermi energy of the bipolaron model in the polymer molecules.

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Section: Introductionmentioning

confidence: 99%

Structure and electrochemical properties of polyamide and polyaniline

Ding

Chao

Zhang

et al. 2007

J of Applied Polymer Sci

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“…The oligomer formed through the electropolymerization of PPDA is soluble in many solvents, so the formation of the film of poly(para-phenylenediamine) [poly(PPDA)] rarely happens by the electrochemical method. 48,51 As a result, a small number of studies on the electropolymerization of three phenylenediamine isomers was performed, but they could be electrochemically copolymerized with aniline and other aniline derivatives to form copolymers with unique physical and chemical properties, [52][53][54] such as conductivity, electrochromism, and the morphology of the polymer. In addition, PPDA can accelerate 40,55 the polymerization during its copolymerization with other aniline derivatives.…”

Section: Resultsmentioning

confidence: 99%

Investigation of the electropolymerization of o‐toluidine and p‐phenylenediamine and their electrocopolymerization by in situ ultraviolet–visible spectroelectrochemistry

Zhang

Liu

et al. 2009

J of Applied Polymer Sci

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Under the conditions of potentiostatic electrolysis, the electropolymerization of o-toluidine (OT) and para-phenylenediamine (PPDA) and the electrocopolymerization between OT and PPDA on an indium tin oxide (ITO) conductive glass electrode at potentials of 0.7, 0.8, and 0.9 V were studied in detail by in situ ultraviolet-visible (UV-vis) spectrometry in 0.5 mol/L sulfuric acid media. It was shown that both OT and PPDA could be electropolymerized on the ITO electrode, which depended on the applied electrolysis potential and the concentration of the monomer. Furthermore, in situ UV-vis spectra indicated that the electrocopolymerization between OT and PPDA could happen. The presence of PPDA not only promoted polymerization but also accelerated polymerization, which was attributed to the formation of an intermediate result from the coupling of PPDA and the toluidine monomer cation radical. PPDA could be incorporated into the copolymer to make the copolymer have a phenazine or phenazine-like cyclic structure, which was proven by the reflectance Fourier transform infrared spectra of the polymer and copolymer. The scanning electron microscopy morphology images of the polymers obtained showed that, in addition to accelerating polymerization, PPDA also could change the method of nucleation for the polymer to make the copolymer possess a fibrous surface morphology. The diameter of the fibroid copolymer was about 100 nm, and the length of that reached about 1000 nm. In the article, a newer concerned mechanism of copolymerization was proposed.

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“…These compounds consist of units of aniline and another monomer which are responsible for significantly different behavior patterns compared to pure homopolymers [13][14][15]. Using a diphenylamine derivative as one of the monomers provides an easy means of structural modification.…”

Section: Introductionmentioning

confidence: 99%