Electrochemical and Electrochromic Behavior of Novel Poly(aniline-co-4,4‘-diaminodiphenyl Sulfone)

Abstract

Electroactive conducting copolymers of aniline and 4,4‘-diaminodiphenyl sulfone (DDS) were prepared electrochemically. The cyclic voltammetric studies were carried out with different feed concentration of DDS on a glassy carbon electrode surface. The voltammograms exhibited different behavior for different concentrations of DDS. The effect of scan rate and pH on the electroactive copolymer film was studied. The copolymer showed good adherence on the glassy carbon electrode surface and gave a response up to pH 7.0. Spectroelectrochemical analysis of copolymer film was carried out on an indium−tin oxide plate, and it showed multicolor electrochromic behavior when the applied potential was changed. The color of the copolymer was changed from neutral yellow (427 nm) to green (777 nm) and to blue (600 nm) at the concentration of 0.3 M aniline and 0.1 M DDS in 0.1 H2SO4 medium. When the DDS concentration changed to 0.5 M, the spectra exhibited the color change from neutral yellow (417 nm) to dark green (723 nm) and to dark blue (650 nm). The copolymer film was characterized by Fourier transform IR spectral data, and the surface morphology was studied using SEM analysis.

Copolymerization of aniline and 4,4′-diaminodiphenyl sulphone and characterization of formed nano size copolymer

“…Dan et al synthesized and characterized conducting poly(aniline-codiaminodiphenylsulfone) and showed that the reactivity of 4,4 -diaminodiphenylsulfone was greater than that of aniline [25]. Electrochemically synthesized copolymer of aniline and 4,4 -diaminodiphenyl sulphone by us exhibited novel electrochromic properties [26]. In this paper, the chemical copolymerization of aniline (ANI) with 4,4 -diaminodiphenyl sulphone (DDS) is presented.…”

Electrochemical sensors of heavy metals using novel polymer-modified glassy carbon electrodes

“…The modified electrodes of poly(ANI-co-DDS), PEDOT, PEDOT/SDS, PEDOT/CTAB, poly(EDOT-co-DCF), poly (EDOT-co-DCF)/SDS, and poly(EDOT-co-DCF)/CTAB were prepared electrochemically on glassy carbon electrode as reported by us earlier [37][38][39].…”

Electroanalysis of Ibuprofen on Conducting Polyaniline Nanofiber Coated Glassy Carbon Surface

“…Studies have indicated that surface coated polymer films exhibit enhanced analytical response for the quantification of various biological and clinical analytes. The thickness, permeation and charge transport characteristics of the polymeric films can be controlled by the potential and current applied [2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Research on surface modified electrode has involved studies of the electrochemistry of the attached molecules, the catalysis and inhibition of various electrochemical processes and specific applications to such widely varying areas as photoelectrodes and analytical determinations [16,17].…”