Electropolymerization of 2-methoxyaniline. Polymerization kinetics and phenazine insertion at low monomer concentrationy

The electropolymerization of 2-methoxyaniline (MOA) has been found to yield products having structure and properties dependent on the monomer concentration, with the insertion of phenazinic units giving a redox-type polymer at low concentrations. The kinetics of this process is studied in 1 M HClO4...

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Autores principales:	Andrade, Estela María, Molina, Fernando Victor
Publicado:	2002
Materias:	aniline aniline derivative monomer ortho anisidine phenazine unclassified drug chemical reaction conductance conference paper cyclic potentiometry electropolymerization kinetics oxidation reduction reaction polymerization
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14639076_v4_n11_p2293_Viva http://hdl.handle.net/20.500.12110/paper_14639076_v4_n11_p2293_Viva
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_14639076_v4_n11_p2293_Viva
record_format	dspace
spelling	paper:paper_14639076_v4_n11_p2293_Viva2023-06-08T16:16:35Z Electropolymerization of 2-methoxyaniline. Polymerization kinetics and phenazine insertion at low monomer concentrationy Andrade, Estela María Molina, Fernando Victor aniline aniline derivative monomer ortho anisidine phenazine unclassified drug chemical reaction conductance conference paper cyclic potentiometry electropolymerization kinetics oxidation reduction reaction polymerization The electropolymerization of 2-methoxyaniline (MOA) has been found to yield products having structure and properties dependent on the monomer concentration, with the insertion of phenazinic units giving a redox-type polymer at low concentrations. The kinetics of this process is studied in 1 M HClO4 solutions containing different monomer concentrations. The voltammetric results are compared with the electropolymerization, in similar experimental conditions, of other aryl amines such as aniline and 2-methylaniline. The effect of dimeric additives on the polymerization rate of MOA is also studied. A change in the kinetic behavior is found at MOA concentrations of about 30-60 mM. An electropolymerization mechanism for 2-methoxyaniline is proposed through a reaction scheme similar to that of aniline, with the inclusion of a step consisting in a head-to-head coupling of oligomers and/or polymer chains yielding phenazine-type units, that effectively works as a termination step. The resistivity increase, in the conductive state, due to the insertion of redox units is also considered. The experimental results are interpreted on the basis of this mechanism. Fil:Andrade, E.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Molina, F.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2002 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14639076_v4_n11_p2293_Viva http://hdl.handle.net/20.500.12110/paper_14639076_v4_n11_p2293_Viva
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	aniline aniline derivative monomer ortho anisidine phenazine unclassified drug chemical reaction conductance conference paper cyclic potentiometry electropolymerization kinetics oxidation reduction reaction polymerization
spellingShingle	aniline aniline derivative monomer ortho anisidine phenazine unclassified drug chemical reaction conductance conference paper cyclic potentiometry electropolymerization kinetics oxidation reduction reaction polymerization Andrade, Estela María Molina, Fernando Victor Electropolymerization of 2-methoxyaniline. Polymerization kinetics and phenazine insertion at low monomer concentrationy
topic_facet	aniline aniline derivative monomer ortho anisidine phenazine unclassified drug chemical reaction conductance conference paper cyclic potentiometry electropolymerization kinetics oxidation reduction reaction polymerization
description	The electropolymerization of 2-methoxyaniline (MOA) has been found to yield products having structure and properties dependent on the monomer concentration, with the insertion of phenazinic units giving a redox-type polymer at low concentrations. The kinetics of this process is studied in 1 M HClO4 solutions containing different monomer concentrations. The voltammetric results are compared with the electropolymerization, in similar experimental conditions, of other aryl amines such as aniline and 2-methylaniline. The effect of dimeric additives on the polymerization rate of MOA is also studied. A change in the kinetic behavior is found at MOA concentrations of about 30-60 mM. An electropolymerization mechanism for 2-methoxyaniline is proposed through a reaction scheme similar to that of aniline, with the inclusion of a step consisting in a head-to-head coupling of oligomers and/or polymer chains yielding phenazine-type units, that effectively works as a termination step. The resistivity increase, in the conductive state, due to the insertion of redox units is also considered. The experimental results are interpreted on the basis of this mechanism.
author	Andrade, Estela María Molina, Fernando Victor
author_facet	Andrade, Estela María Molina, Fernando Victor
author_sort	Andrade, Estela María
title	Electropolymerization of 2-methoxyaniline. Polymerization kinetics and phenazine insertion at low monomer concentrationy
title_short	Electropolymerization of 2-methoxyaniline. Polymerization kinetics and phenazine insertion at low monomer concentrationy
title_full	Electropolymerization of 2-methoxyaniline. Polymerization kinetics and phenazine insertion at low monomer concentrationy
title_fullStr	Electropolymerization of 2-methoxyaniline. Polymerization kinetics and phenazine insertion at low monomer concentrationy
title_full_unstemmed	Electropolymerization of 2-methoxyaniline. Polymerization kinetics and phenazine insertion at low monomer concentrationy
title_sort	electropolymerization of 2-methoxyaniline. polymerization kinetics and phenazine insertion at low monomer concentrationy
publishDate	2002
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14639076_v4_n11_p2293_Viva http://hdl.handle.net/20.500.12110/paper_14639076_v4_n11_p2293_Viva
work_keys_str_mv	AT andradeestelamaria electropolymerizationof2methoxyanilinepolymerizationkineticsandphenazineinsertionatlowmonomerconcentrationy AT molinafernandovictor electropolymerizationof2methoxyanilinepolymerizationkineticsandphenazineinsertionatlowmonomerconcentrationy
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Electropolymerization of 2-methoxyaniline. Polymerization kinetics and phenazine insertion at low monomer concentrationy

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