Document type
Journal articles
Document subtype
Full paper
Title
Electrochemical Copolymerisation of Luminol with Aniline: A New Route for the Preparation of Self-doped Polyanilines.
Participants in the publication
Ferreira, Virginia C (Author)
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA
Dep. Química e Bioquímica
Dep. Química e Bioquímica
CQB
A. C. Cascalheira (Author)
L. M. Abrantes. (Author)
Summary
Electrochemical copolymerisation of luminol and aniline from acidic aqueous medium onto gold electrodes has been investigated. Cyclic voltammetry in combination with electrochemical quartz crystal microbalance (EQCM) have been used to study both the in situ growth and redox switching process. In monomer free solution, the deposited polymers are stable and electrochemically active but distinct behaviour is shown by poly(luminol-aniline) films obtained from solutions with different monomers concentration ratio. In acidic medium, the current–voltage profiles range from a polyluminol (one pair of redox couple) to a polyaniline like redox conversion (three redox couples) as the aniline concentration increases. Unlike polyaniline, all prepared copolymers display well expressed electroactivity in sodium carbonate medium (pH 8), which also extends with the aniline content. The self-doping role assured by luminol moiety in the copolymer is also retrieved from the simultaneously recorded EQCM data.
Date of Submisson/Request
2007-06-07
Date of Acceptance
2007-08-08
Date of Publication
2008-08-15
Institution
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA
Where published
ELECTROCHIMICA ACTA
Publication Identifiers
ISSN - 0013-4686
Starting page
3803
Last page
3811
Document Identifiers
DOI -
https://doi.org/ 10.1016/j.electacta.2007.08.020
Rankings
SCIMAGO Q1 (2016) - 1.355 - Electrochemistry
SCOPUS Q1 (2012) - 1.651 - Electrochemistry
Web Of Science Q1 (2017) - 5.116 - ELECTROCHEMISTRY - SCIE
Keywords
Self-doping
Electrochemical copolymerisation
Aniline
Luminol
Electrochemical quartz crystal microbalance
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