Great improvement of polypyrrole films prepared electrochemically from aqueous solutions by adding nonaphenol polyethyleneoxy(10)ether

We report the effect of adding nonaphenol polyethyleneoxy (10) ether (OP10) into the electropolymerization solution of pyrrole on the tensile strength and structure of the as-prepared polypyrrole (PPy) films. The tensile strength of the PPy film prepared from TsONa aqueous solution with OP10 [PPy(TsO-, OP10)] reaches 127 MPa, which is much stronger than that of the film from usual aqueous solution without OP10 [PPy(TsO-), 27.8 MPa]. The results of elemental analysis indicate that the amount of excess oxygen in PPy(TsO-, OP10) decreased obviously, compared with that in PPy(TsO-). The morphology and structure of PPy(TsO-, OP10) and PPy(TsO-) were also compared by SEM and X-ray diffraction spectroscopy. (C) 1997 Elsevier Science Ltd.