Polyaniline/Montmorillonite Nanocomposites Obtained by In Situ Intercalation and Oxidative Polymerization in Cationic Modified-Clay (Sodium, Copper and Iron)
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Título: | Polyaniline/Montmorillonite Nanocomposites Obtained by In Situ Intercalation and Oxidative Polymerization in Cationic Modified-Clay (Sodium, Copper and Iron) |
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Autor/es: | Zehhaf, Abdelhafid | Morallon, Emilia | Benyoucef, Abdelghani |
Grupo/s de investigación o GITE: | Electrocatálisis y Electroquímica de Polímeros |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Materiales |
Palabras clave: | Oxidative polymerization | Polyaniline | Nanocomposite | Conducting polymer | Montmorillonite | Cation-exchanged |
Área/s de conocimiento: | Química Física |
Fecha de publicación: | nov-2013 |
Editor: | Springer Science+Business Media New York |
Cita bibliográfica: | Journal of Inorganic and Organometallic Polymers and Materials. 2013, 23(6): 1485-1491. doi:10.1007/s10904-013-9953-3 |
Resumen: | Polyaniline/montmorillonite nanocomposites (PANI/M) were obtained by intercalation of aniline monomer into M modified with different cations and subsequent oxidative polymerization of the aniline. The modified-clay was prepared by ion exchange of sodium, copper and iron cations in the clay (Na–M, Cu–M and Fe–M respectively). Infrared spectroscopy confirms the electrostatic interaction between the oxidized PANI and the negatively charged surface of the clay. X-ray diffraction analysis provides structural information of the prepared materials. The nanocomposites were characterized by transmission electron microscopy and their thermal degradation was investigated by thermogravimetric analysis. The weight loss suggests that the PANI chains in the nanocomposites have higher thermal stability than pure PANI. The electrical conductivity of the nanocomposites increased between 12 and 24 times with respect to the pure M and this increase was dependent on the cation-modification. The electrochemical behavior of the polymers extracted from the nanocomposites was studied by cyclic voltammetry and a good electrochemical response was observed. |
Patrocinador/es: | This work was supported by the National Agency for the Development of University Research (ANDRU), the Directorate General of Scientific Research and Technological Development (DGRSDT) of Algeria. Ministerio de Economia y Competitividad and FEDER are also acknowledged (MAT2010-15273). The Generalitat Valenciana is also acknowledged (PROMETEO2013/038). |
URI: | http://hdl.handle.net/10045/38697 |
ISSN: | 1574-1443 (Print) | 1574-1451 (Online) |
DOI: | 10.1007/s10904-013-9953-3 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | The final publication is available at Springer via http://dx.doi.org/10.1007/s10904-013-9953-3 |
Revisión científica: | si |
Aparece en las colecciones: | INV - GEPE - Artículos de Revistas |
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2013_Zehhaf_etal_JIOP_final.pdf | Versión final (acceso restringido) | 444,79 kB | Adobe PDF | Abrir Solicitar una copia |
2013_Zehhaf_etal_JIOP.pdf | Versión revisada (acceso abierto) | 523,59 kB | Adobe PDF | Abrir Vista previa |
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