Thermal oxidative stability of polyanilines

Thanh Hien Tran (1, 2) , Dominique Debarnot (1) , Emmanuel Richaud (2, 3)

1 IMMM - Institut des Molécules et Matériaux du Mans
2 Arts et Métiers ParisTech
3 PIMM - Laboratoire Procédés et Ingénierie en Mécanique et Matériaux

This paper deals with thermal ageing of polyaniline obtained from plasma or chemical ways. FTIR analyses suggest the formation of stable carbonyl compounds in both cases. The plasma polyaniline degrades clearly faster than its chemical analog which is discussed from structural considerations. The consequences of thermal ageing on the surface properties monitored by Water Contact Angles (WCA) are also considered and explained as the overlap of an “oxidation” component that decreases WCA and a “crosslinking” component (only observed in plasma polyaniline) responsible for the WCA increase.

Mots clés: Cold plasma; Infra-red spectroscopy; Polyaniline; Thermal stability; Water contact angle

Domaines: Matériaux

Thanh Hien Tran, Dominique Debarnot, Emmanuel Richaud. Thermal oxidative stability of polyanilines. Polymer Testing, 2020, 81, pp.1-7. ⟨10.1016/j.polymertesting.2019.106187⟩. ⟨hal-02539505⟩