Electrochemical synthesis and characterization of poly(2,2’ -dithiodianiline) thin films loaded with copper microparticles: application to the amperometric analysis of γ- aminobutyric acid

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Title: Electrochemical synthesis and characterization of poly(2,2’ -dithiodianiline) thin films loaded with copper microparticles: application to the amperometric analysis of γ- aminobutyric acid
Authors: Alfonso Hernández, Geraldo | Valle de la Cortina, María Angélica del | Soto, G.M. | Cotarelo Méndez, María de los Ángeles | Quijada Tomás, César | Vázquez Picó, José Luis
Research Group/s: Electrocatálisis y Electroquímica de Polímeros
Center, Department or Service: Universidad de Alicante. Departamento de Química Física | Pontificia Universidad Católica de Chile. Facultad de Química | Universidad Politécnica de Valencia. Departamento de Ingeniería Textil y Papelera
Keywords: 2,2’-dithiodianiline | γ-aminobutyric acid | Polymer- modified electrode
Knowledge Area: Química Física | Ciencia de Materiales
Date Created: 7-Dec-2005
Issue Date: 23-Dec-2005
Publisher: Springer Berlin / Heidelberg
Citation: ALFONSO HERNÁNDEZ, Geraldo, et al. "Electrochemical synthesis and characterization of poly(2,2’ -dithiodianiline) thin films loaded with copper microparticles: application to the amperometric analysis of γ- aminobutyric acid". Polymer Bulletin. Vol. 56, No. 2-3 (Febr. 2006). ISSN 0170-0839, pp. 201-210
Abstract: Modified electrodes with poly(2,2’-dithiodianiline),PDTDA, were prepared from the corresponding monomer by cyclic voltammetry between 0.0 V and 1.5-1.6 V on gold or stainless steel respectively. The potentiodynamic method proved to bring about good quality and adherent thin films. The wide potential window shown by this modified electrode allowed attempting the insertion of copper in the polymeric matrix using several strategies. The response of this modified electrode copper was checked in the presence of γ-aminobutyric acid (GABA). Copper loaded on PDTDA/Au electrodes showed the highest sensitivity along with a stable and reproducible response for the detection of GABA. The surface morphology and composition analysis by SEM and XPS shows that copper is deposited in the polymeric matrix as uniformly scattered microparticles. The surface of these particles is mainly composed of Cu(I) species.
Sponsor: Financial support of projects 3020033 and 1020520 from FONDECYT (Chile) and project MAT2004-01479 from Ministerio de Educación y Ciencia (Spain).
URI: http://hdl.handle.net/10045/7325
ISSN: 0170-0839 (Print) | 1436-2449 (Online)
DOI: 10.1007/s00289-005-0485-z
Language: eng
Type: info:eu-repo/semantics/article
Rights: The original publication is available at www.springerlink.com
Peer Review: si
Publisher version: http://dx.doi.org/10.1007/s00289-005-0485-z
Appears in Collections:INV - GEPE - Artículos de Revistas

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