Anodic polymerization of 1-amino-2-methyl-9,10-anthraquinone in mixed solvent

M. M. Ramiz, K. M. Hassan, E. A. Khudaish, A. Deronzier, S. Chardon-Noblat, M. Abdel Azzem

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Poly(1-amino-2-methyl-9,10-anthraquinone) (PAMAQ) was synthesized at glassy carbon (GC) electrode using 1-amino-2-methyl-9,10-anthraquinone (AMAQ) dissolved in a binary (1:1) solvent mixture containing acetonitrile (ACN) and 5 M H2SO4 employing a continuous cyclic voltammetry or controlled potential electrolysis (CPE) techniques. Electrochemical responses of the prepared polymer films were studied in 1 M H2SO4 aqueous solution. A number of factors affecting the film formation such as potential limits, scan rates, number of cycles, monomer concentration, nature of electrolytes and polymerization techniques were examined in details. The effect of scan rates and electrolyte composition on the electroactivity of the resulting polymeric films were tested also. The optimum conditions for the film formation were sweeping the electrode potential between -0.7 V and +1.8 V at a scan rate of 50 mV/s for 25 cycles using 1 mM of the monomer (AMAQ). The prepared modified electrode was found to be highly electroactive and stable in 1 M H2SO4 supporting electrolyte but the polymerization process diminished completely when 0.1 M LiClO4/ACN or 0.1 M Bu 4NClO4/ACN was used as a result of polymer instability and film solubilization. The solubility of the polymeric film has been confirmed by following up the electropolymerization of AMAQ applying UV-Vis technique. Poly(1-amino-9,10-anthraquinone) (PAAQ) was also prepared using the same binary solvent mixture. The redox behaviour and the stability of PAAQ were found to be different in the negative domain compared with PAMAQ. The effect of the presence of the methyl group in the structure of the aminoquinone was discussed.

Original languageEnglish
Pages (from-to)35-42
Number of pages8
JournalJournal of Electroanalytical Chemistry
Volume647
Issue number1
DOIs
Publication statusPublished - Aug 15 2010

Fingerprint

Acetonitrile
Polymer films
Electrolytes
Polymerization
Electrodes
Monomers
Electropolymerization
Glassy carbon
Electrolysis
Cyclic voltammetry
Solubility
Polymers
Chemical analysis
9,10-anthraquinone
acetonitrile

Keywords

  • 1-Amino-2-methyl-9,10-anthraquinone
  • Anodic electropolymerization
  • Polymer film

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Analytical Chemistry
  • Electrochemistry

Cite this

Anodic polymerization of 1-amino-2-methyl-9,10-anthraquinone in mixed solvent. / Ramiz, M. M.; Hassan, K. M.; Khudaish, E. A.; Deronzier, A.; Chardon-Noblat, S.; Abdel Azzem, M.

In: Journal of Electroanalytical Chemistry, Vol. 647, No. 1, 15.08.2010, p. 35-42.

Research output: Contribution to journalArticle

Ramiz, M. M. ; Hassan, K. M. ; Khudaish, E. A. ; Deronzier, A. ; Chardon-Noblat, S. ; Abdel Azzem, M. / Anodic polymerization of 1-amino-2-methyl-9,10-anthraquinone in mixed solvent. In: Journal of Electroanalytical Chemistry. 2010 ; Vol. 647, No. 1. pp. 35-42.
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AB - Poly(1-amino-2-methyl-9,10-anthraquinone) (PAMAQ) was synthesized at glassy carbon (GC) electrode using 1-amino-2-methyl-9,10-anthraquinone (AMAQ) dissolved in a binary (1:1) solvent mixture containing acetonitrile (ACN) and 5 M H2SO4 employing a continuous cyclic voltammetry or controlled potential electrolysis (CPE) techniques. Electrochemical responses of the prepared polymer films were studied in 1 M H2SO4 aqueous solution. A number of factors affecting the film formation such as potential limits, scan rates, number of cycles, monomer concentration, nature of electrolytes and polymerization techniques were examined in details. The effect of scan rates and electrolyte composition on the electroactivity of the resulting polymeric films were tested also. The optimum conditions for the film formation were sweeping the electrode potential between -0.7 V and +1.8 V at a scan rate of 50 mV/s for 25 cycles using 1 mM of the monomer (AMAQ). The prepared modified electrode was found to be highly electroactive and stable in 1 M H2SO4 supporting electrolyte but the polymerization process diminished completely when 0.1 M LiClO4/ACN or 0.1 M Bu 4NClO4/ACN was used as a result of polymer instability and film solubilization. The solubility of the polymeric film has been confirmed by following up the electropolymerization of AMAQ applying UV-Vis technique. Poly(1-amino-9,10-anthraquinone) (PAAQ) was also prepared using the same binary solvent mixture. The redox behaviour and the stability of PAAQ were found to be different in the negative domain compared with PAMAQ. The effect of the presence of the methyl group in the structure of the aminoquinone was discussed.

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