Electropolymerized Polypyrrole and Polythiophene Films

One of the first examples that involved the incorporation of metallopor-phyrin and metallophthalocyanine complexes into polypyrrole films was based 

The electrochemical characterization of the polypyrrole films doped by anionic complexes was generally achieved by cyclic voltammetry. Unfortunately, no well-defined waves for the porphyrin or phthalocyanine redox couples were observed which may be because they are superimposed on the large polypyrrole background. Therefore, the reported voltammograms could either be those for the redox process of the incorporated complexes or those of the 

However, this method of incorporating metalloporphyrins or metalloph-thalocyanines into a polypyrrole matrix has a severe limitation, namely, the electrostatic binding capacity of the polymer film depends on the potential and disappears when the polypyrrole is reduced . Moreover, this ion-exchange capacity is restricted to one negative charge for 3 or 4 pyrrole units. 

In the following Section we report on some significant examples described in the literature in the last decade in order to update the previously published overview on this matter.  

Significant Recent Exampies of Eiectropoiymerized Fiims Doped with Porphyrins. 

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