UV-VIS SPECTROELECTROCHEMICAL <i>IN SITU</i> STUDY DURING THE ELECTROSYNTHESIS OF COPOLYMERS

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dc.contributor.authordel Valle, M. A.
dc.contributor.authorMotheo, A.
dc.contributor.authorRamirez, A. M. R.
dc.date.accessioned2025-01-23T21:09:33Z
dc.date.available2025-01-23T21:09:33Z
dc.date.issued2019
dc.description.abstractIn this work, the synthesis of poly(aniline-co-o-methoxyaniline) is performed using purely electrochemical techniques, coupled to UV-vis spectroscopy in situ, in 3D. The electrocopolymerization is carried out on ITO electrodes, in various monomer ratios aniline/o-methoxyaniline varying between 0.1 to 0.4 mol L-1 in H2SO4 1.0 mol L-1 The homo- and copolymers were characterized by cyclic voltammetry, in situ UV-Visible, and scanning electron microscopy. The results show the important information provided by UV-Visible spectroscopy coupled with electrochemical techniques. Thus, it is observed that the reactivity that gives the o-methoxy group in the aniline ring, damages the conductivity of the polymer, due to the occlusion of oligomers of N-phenyl-1,4-benzoquinonediimine and/or with the structure of oxazine. On the other hand, the SEM images show morphological changes associated with the progress of the synthesis, which can be related with the less conductivity produced by o-methoxy, despite the greater reactivity.
dc.fuente.origenWOS
dc.identifier.issn0717-9707
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/100822
dc.identifier.wosidWOS:000495892300010
dc.issue.numero3
dc.language.isoen
dc.pagina.final4557
dc.pagina.inicio4553
dc.revistaJournal of the chilean chemical society
dc.rightsacceso restringido
dc.subjectElectropolymerization
dc.subjectspectro-electrochemical
dc.subjectpolyaniline
dc.subjectpoly-o-methoxyaniline
dc.subjectpoly(aniline-co-o-methoxyaniline)
dc.titleUV-VIS SPECTROELECTROCHEMICAL <i>IN SITU</i> STUDY DURING THE ELECTROSYNTHESIS OF COPOLYMERS
dc.typeartículo
dc.volumen64
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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