SYNOPSISA water soluble ionomer with natrium propanesulfonate groups was prepared based on a linear polyurethane with high content of -NHCOO -structures. This compound was used both as macromolecular electrolyte and dopant ion in electrochemical polymerization of pyrrole, obtaining a molecular level polypyrrole-propanesulfonate polyurethane composite with electroconductive properties. 0 1993 John Wiley & Sons, Inc.

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Preparation of a molecular-level composite of sulfonated polyurethane ionomer and polypyrrole (PUA-PPy) was performed by electrochemical polymerization of pyrrole in aqueous solution of polyurethane anionomer and was confirmed by compositional and Fourier transform infrared analysis. The effects of anionomer concentration and of electrochemical reduction process were followed, and it was forecasted that the composite could behave as a cation exchanger. Some results of thermal analysis were also presented.

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Two monomers with preformed Schiff base and arylenevinylene structure and final bromine substituents were synthesized by coupling of 3-formyl-6-bromo-N-hexyl-carbazole with 1,4-phenylenediamine and tetraethyl-p-xylylene diphosphonate, respectively. These compounds were used to synthesize arylenimine and arylenevinylene polymers containing N-hexyl 3,6-carbazolylydiyl units in the main chain by dehalogenative coupling reactions via organometallic reductive catalysis (Ni 0 .bipy). The polymers were characterized by spectral methods (Fourier transform-infrared, 1 H NMR, UV-vis and fluorescence) as well as gel permeation chromatography and differential scanning calorimetry.