X-ray photoelectron spectroscopy study of polypyrrole grown at the surface of sulfonated polyethylene films

5 pags., 7 figs., 3 tabs.An X-ray photoelectron study of sulfonated polyethylene films, with different sulfonation degrees (SD) before and after pyrrole polymerization at their surfaces is presented. For SD values of about 2g/m2 the outer surface of polyethylene film becomes fully sulfonated. Sulfonic groups which act as a counterion of the grown polypyrrole (PPy) monitor partially the fixation of PPy at the outer surface. A variation of the pyrrole rings/counterion ratio (7.4-3.9) depending on SD values has been found. © 1991 American Chemical Society.Financial support of this work was from CICYT under project MAT88-0159. We thank Mr. E. Pardo for collection of XP spectra. C.A. acknowledges to Ministry of Education and Science, Spain, for a doctoral fellowship. We greatly appreciate the suggestions and comments of the reviewer