[en] Nanotubules of polypyrrole (PPy) were electrochemically synthesized using the pores of nanoporous polycarbonate (PC) particle track-etched membranes (PTM) as templates. The influence of some conditions of electrosynthesis (electrochemical method, monomer concentration, electrolyte concentration and nature) on the kinetics of pyrrole electropolymerization and on the morphology of the obtained nanomaterials has been investigated. In particular, the empirical kinetics of the electrochemical generation of polypyrrole-perchlorate (PPy-ClO4) from aqueous solution, at 0.8 V (vs SCE) was followed by electrical charges measurement. The orders with respect to pyrrole and LiClO4 are 0.34 and 0.70 respectively. The electrogeneration of polypyrrole-polystyrenesulfonate (PPy-PSS) was also followed and shows that an increase of the electrolyte concentration increases the polymerization rate at constant potential. Finally, the morphology of PPy nanotubules doped with LiClO4 and NaPSS has been studied by high resolution emission SEM and by TEM.
Research Center/Unit :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry Materials science & engineering
Author, co-author :
Demoustier-Champagne, Sophie; Université catholique de Louvain (UCL) > Unité de Physique et de Chimie des Hauts Polymères
Ferain, Etienne; Université catholique de Louvain (UCL) > Unité de Physique et de Chimie des Hauts Polymères
Jérôme, Christine ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Jérôme, Robert ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Legras, Roger; Université catholique de Louvain (UCL) > Unité de Physique et de Chimie des Hauts Polymères
Language :
English
Title :
Electrochemically synthesized polypyrrole nanotubules : effects of different experimental conditions
Martin, C. R., Van Dyke, L. S., Cai, Z. and Liang, W., J. Am. Chem. Soc., 1990, 112, 8976.
Ferain, E. and Legras, R., Nucl. Instrum. Methods Phys. Res. B, 1993, 82, 539.
Ferain, E. and Legras, R., Nucl. Instrum. Methods Phys. Res. B, 1994, 84, 331.
Ferain, E., and Legras, R., Nucl. Instrum. Methods Phys. Res. B, 1997, 131, 97.
Martin, C. R. and Parthasarathy, R. V., Chem. Mater., 1994, 6, 1627.
Granström, M., Carlberg, J. C. and Inganäs, O., Polymer, 1995, 36, 3191.
Rodriguez, J., Grande, H.-J., Otero, T. F., Handbook of Organic Conductive Molecules and Polymers, ed. H. S. Nalwa, Vol. 2. John Wiley & Sons, 1997, Chap. 10.
Otero, T. F. and Santamaria, C., Electrochim. acta, 1992, 37, 297.
Otero, T. F., Rodriguez, J., Angulo, E. and Santamaria, C., Synth. Met., 1991, 43, 2831.
Otero, T. F. and Angulo, E., J. Appl. Electrochem., 1992, 22, 369.
Otero, T. F. and Sansifiena, J. M., J. Electroanal. Chem., 1996, 412, 109.
