Conductivity of polydiacetylene with π-conjugation between polymer backbone and substituents

Poly-1,4-bis(3-acetamidephenyl)-1,3-butadiyne, i.e., a topochemically obtained polydiacetylene for which one can expect π-conjugation between polymer backbone and substituents, has been examined as a candidate of conducting polymers. Upon iodine doping, the polymer film attained the conductivity of 4.8 × 10^?2 S/cm, i.e., about three orders of magnitude greater than those of other polydiacetylene films which have no such π-conjugation.