J. Chim. Phys.
Volume 89, 1992
|Page(s)||1173 - 1178|
|Published online||29 May 2017|
Characterization of conducting polymers by inverse gas chromatography
Part 1. Dispersive and acid-base properties of conducting polypyrrole and its related insulating form
Institut de Topologie et de Dynamique des Systèmes associé au CNRS, Université Paris VII, 1, rue Guy de la Brosse, 75005 Paris, France.
The surface and bulk properties of chemically synthesized conducting polypyrrole doped by Cl- (PPyCl) and its insulating form (PPyR), were studied by Inverse Gas Chromatography (IGC). The dispersive component of the surface tension of both PPyCl and PPyR is in the 30-60 mJ/m2 range at 50°C. Moreover PPyCl and PPyR interact specifically with Lewis acids and bases, thus exhibiting amphoteric behavior. By studying the retention volumes vs temperature we detected a transition around 60-90 °C which might be attributed to the glass transition (Tg) of PPyCl.
© Elsevier, Paris, 1992