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Journal of the Mexican Chemical Society

Print version ISSN 1870-249X

J. Mex. Chem. Soc vol.49 n.2 México  2005

 

Article

 

Characterization of Conducting Polyaniline Blends by Resonance Raman Spectroscopy

 

José E. Pereira da Silva, Márcia L.A. Temperini and Susana I. Córdoba de Torresi*

 

Instituto de Química, Universidade de São Paulo, CP 26077, 05513-970 São Paulo - SP, Brazil. * e-mail: storresi@iq.usp.br

 

Received: November 23, 2004
Published on the web: April 6, 2005

 

Abstract

Raman and optical microscopy were used to investigate possible interactions between polyaniline (PANI) and different insulating polymers in conducting blends. Resonance Raman and optical micrographs were used to study the physical interaction in materials. Analysis Raman spectra was done investigating the relative intensity of bands at 574 and 607 cm-1. A relationship between Raman bands and conductivity was also proposed.

Keywords: Raman spectroscopy, optical microscopy, conducting blends, polyaniline.

 

Resumo

À microscopia óptica juntamente com a espectroscopia Raman no modo microscópico foram utilizadas para investigar as possíveis interações entre a polianilina (PANI) e diferentes polímeros isolantes em diversas blendas condutoras. Interações físicas podem ser inferidas através da análise das intensidades relativas das bandas em 574 e 607 cm-1. A condutividade do material e as intensidades relativas destas bandas Raman são também analisadas.

 

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Acknowledgements

Authors are indebted to Brazilian Agencies FAPESP (Proc. No 98/15686-3), CNPq and CAPES.

 

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