SciELO - Scientific Electronic Library Online

 
vol.46 número2METHANOL ELECTRO-OXIDATION ON Pt-Rh ALLOYS IN ACID MEDIUMDITERPENOIDS FROM CALCEOLARIA GLABRATA índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

Compartir


Boletín de la Sociedad Chilena de Química

versión impresa ISSN 0366-1644

Resumen

BASAEZ, L. et al. ELECTROPOLYMERIZATION OF ANILINE AND PYRROLE IN THE PRESENCE OF COPPER(II). Bol. Soc. Chil. Quím. [online]. 2001, vol.46, n.2, pp.217-221. ISSN 0366-1644.  http://dx.doi.org/10.4067/S0366-16442001000200017.

Polymerization of aniline and pyrrole in the presence of copper(II) coming from different salts were studied by cyclic voltammetry. The systems used are: polymer/CuCl2/HCl, polymer/CuSO4/H2SO4 and polymer/Cu(NO3)2/HNO3 ). The polymer/metal mol ratios were 10/1 in both cases. The voltammograms were recorded at pH = 0 under constant potentiodynamic regime of 100 mV. s-1. It was found that aniline polymerizes in presence of Cu(II) and of all the strong acids tested (HCl, H2SO4 and HNO3). The best medium to obtain polyaniline was Cu(II) in 1 M HCI. Both polyaniline and poly(pyrrole) showed a better voltammetric behavior in HCl medium. It was attributed to the CuCl2- or CuCl32- complex formation which can be incorporated to the polymer when it is electro-oxidized. It was not possible polymerize pyrrole in H2SO4.

Palabras clave : Electropolymerization; aniline; pyrrole; copper complexes; copper (II).

        · resumen en Español     · texto en Inglés

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons