The synthesis and characterization of various poly(pyrrole)s derived from (1H-pyrrol-3-yl)acetic acid are described. The stability and the conductivity of polymers from ester derivatives of (1H-pyrrol-3-yl)acetic acid with linear or branched alkyl chains, ether or thioether functions and polyfluorinated chains are evaluated. The electroactivity of these new conducting materials has been determined in both aqueous and organic media by cyclic voltammetry. Some of these polymers show ionoselective or enantioselective properties.