Polybis(pyrrolyl)phosphazene.

Poly(pyrrole) may be prepared by electrochemical or chemical synthesis, and under appropriate conditions, free-standing films of the oxidized material are produced, which exhibit relatively high conductivity and stability. This material provides an interesting contrast with the organophosphazene polymers. Although the polyphosphazenes are completely conjugated, all of the currently known materials are insulators; nevertheless the polyphosphazenes exhibit excellent mechanical and chemical stability properties.