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

被引:7
作者
Alfonso, G
del Valle, MA
Soto, GM
Cotarelo, MA
Quijada, C
Vázquez, JL
机构
[1] Catholic Univ Chile, Fac Quim, Santiago 4860, Chile
[2] Univ Alicante, Dept Quim Fis, E-03080 Alicante, Spain
[3] Univ Politecn Valencia, Dept Ingn Text & Papelera, Alicante 03801, Spain
关键词
2,2'-dithiodianiline; gamma-aminobutyric acid; polymer-modified electrode;
D O I
10.1007/s00289-005-0485-z
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
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 gamma-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.
引用
收藏
页码:201 / 210
页数:10
相关论文
共 25 条
[1]  
Alfonso G, 2004, J CHIL CHEM SOC, V49, P185, DOI 10.4067/S0717-97072004000200015
[2]   Hydroquinone oxidation electrocatalysis at polyaniline films [J].
Büttner, E ;
Holze, R .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2001, 508 (1-2) :150-155
[3]   Copper dispersed into polyaniline films as an amperometric sensor in alkaline solutions of amino acids and polyhydric compounds [J].
Casella, IG ;
Cataldi, TRI ;
Guerrieri, A ;
Desimoni, E .
ANALYTICA CHIMICA ACTA, 1996, 335 (03) :217-225
[4]   Electrosynthesis and characterization of a conducting copolymer having S-S links [J].
Chen, SS ;
Wen, TC ;
Gopalan, A .
SYNTHETIC METALS, 2003, 132 (02) :133-143
[5]   Electrosynthesis and analytical characterisation of polypyrrole thin films modified with copper nanoparticles [J].
Cioffi, N ;
Torsi, L ;
Losito, I ;
Di Franco, C ;
De Bari, I ;
Chiavarone, L ;
Scamarcio, G ;
Tsakova, V ;
Sabbatini, L ;
Zambonin, PG .
JOURNAL OF MATERIALS CHEMISTRY, 2001, 11 (05) :1434-1440
[6]   The electrocatalytic behaviour of poly(aniline-co-4adpa) thin films in weakly acidic medium [J].
Cotarelo, MA ;
Huerta, F ;
Quijada, C ;
Cases, F ;
Vázquez, JL .
SYNTHETIC METALS, 2004, 144 (02) :207-211
[7]  
Del Valle MA, 1998, J APPL ELECTROCHEM, V28, P943
[8]  
DELVALLE MA, 2002, AM CHEM SOC SS, V832, P75
[9]   Synthesis, characterization and electrical properties of poly[bis-(2-aminophenyl)disulfide] and poly[bis-(2-aminophenyl)diselenide]: Part II.: XPS, ESR, SEM and conductivity study [J].
Díaz, FR ;
Sánchez, CO ;
del Valle, MA ;
Radic, D ;
Bernéde, JC ;
Tregouët, Y ;
Moliniè, P .
SYNTHETIC METALS, 2000, 110 (01) :71-77
[10]   Synthesis, characterization and electrical properties of poly[bis-(2-aminophenyl)disulfide] and poly[bis(2-aminophenyl)diselenide] [J].
Díaz, FR ;
Sánchez, CO ;
del Valle, MA ;
Ugalde, L ;
Gargallo, L .
SYNTHETIC METALS, 1999, 105 (03) :161-169