Polypyrrole, alkylammonium

Attempts to incorporate water-soluble tetracarboxylated and tetrasulpho-nated porphyrins into polypyrrole films containing alkylammonium groups have been reported Polypyrrole-alkylammonium polymers, prepared from 3-(pyrrol-l-yl)propyltriethylammonium (noted 40) and 12-(pyrrol-l-yl)dodecyltri-ethylammonium (noted 41) monomers (see examples in Figure 8.10) exhibit... 

I.M.F. De Oliveira, J.C. Moutet, and S. Hamar-Thibault, Electrocatalytic hydrogenation activity of palladium and rhodium microparticles dispersed in alkylammonium- and pyridi-nium-substituted polypyrrole films, J. Mater. Chem., 2,167 173 (1992). 

De Gregori, L, M. Carrier, A. Deronzier, J.C. MouteL F. Bedioui, and J. Devynck (1992). Incorporation of anionic cobalt porphyrin by anion-exchange into polypyrrole films containing alkylammonium groups. J. Chem. Soc. Faraday Trans. 88, 1567-1572. 

Cosnier, S., A. Deronzier, J.C. Moutet, and J.F. Roland (1989). Alkylammonium and pyridinium group-containing polypyrroles, a new class of electronically conducting anion-exchange polymers. 7. Electroanal. Chem. 271, 69-81. 

The electrochemical deposition of precious metal microparticles into alkylammonium- (1) and pyridinium- (2 and 3) substituted polypyrrole films has also been achieved by Moutet and coworkers [140, 198, 199]. The electrodes coated with those polymers were successfully used for the electrocatalytic hydrogenation of some unsaturated organic compounds in aqueous media. It was demonstrated that the redox-active viologen groups in poly(3) improved markedly the conductivity and the stability of the catalytic films [198]. 

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