KIM, DY LEE, JY KIM, CY KANG, ET TAN, KL 2024-01-21T20:44:12Z 2024-01-21T20:44:12Z 2021-09-02 1995-03-01 0379-6779 https://pubs.kist.re.kr/handle/201004/145140 The differences in protonation and charge transfer behavior between polypyrrole(PPY) powders and films doped with inorganic acids, or bulky acids, were assessed quantitatively by the X-ray photoelectron spectroscopic (XPS) technique. PPY-dodecylsulfate and PPY-toluene-4-sulfonate films with [N+]/[N] ratio over 40% can be readily prepared electrochemically. Treatment of these salt films with a base results in the 25% deprotonated PPY. UV-visible light spectroscopy shows little difference in structures of PPY formed chemically and electrochemically. English ELSEVIER SCIENCE SA LAUSANNE POLYANILINE PYRROLE PROTONATION AND DOPING BEHAVIOR OF POLYPYRROLE FILMS AND POWDERS Article 10.1016/0379-6779(94)02544-9 1 SYNTHETIC METALS, v.69, no.1-3, pp.501 - 502 SYNTHETIC METALS 69 1-3 501 502 scie scopus A1995QL60100206 2-s2.0-0029271480 Materials Science, Multidisciplinary Physics, Condensed Matter Polymer Science Materials Science Physics Polymer Science Article; Proceedings Paper POLYANILINE PYRROLE polypyrrole