STUDIES TOWARD THE DESIGN AND SYNTHESIS OF SUPERCONDUCTING ORGANIC POLYMERS: MAIN CHAIN INCORPORATION OF ET SUBUNITS

摘要

During the past twenty years there has been an explosion of interest in conducting organic materials. This interest has encompassed a variety of new material classifications from the first organic metal TTF-TCNQ (1973) and similar charge transfer salts,' to an ever increasing family of conducting polymers such as polyacetylene, poly(p-phenylene), polythiophene and poly(p-phcnylene vinylene), where conductivities as high as 10s S/cm have been achieved.2 During this time there has also been a continuous interest in organic superconductors, however the relatively low temperatures that must be achieved in order to observe superconductivity has been a deterrent to their development. In addition, organic superconductors are normally produced as dectrocrystallized salt crystals, which are quite small and fragile, thus severely limiting their practical application. In this study we will outline an approach lo the design of the first organic polymeric superconductors.