“…Since discovered in the late 19th century, , increasing research interest has focused on the electrically conductive nature of the aromatic polymer family such as polyaniline (PAN), − aniline (AN), with its derivative copolymers, − polyaminopyridine , and its copolymers, , polyaminoquinoline, polymethylquinoline, polypyrrole (PPY), − and its copolymers, − and polythiophene. − In recent years, the polymer family is considered as being composed of organic conductive materials with very promising properties, such as good environmental stability, ,,,, moderately high conductivity upon doping suitable ions, ,,, and higher gas ...…”