Synthesis and physical characterization of electrically conducting polymers of polynuclear aromatic sulfonyl compounds

Potentially useful conducting polymers of sulfonyl substituted phenanthrene derivativesand non-conducting linear polymers, such as, polystyrene and poly(N-vinylcarbazole) have beensynthesized and characterized using IR, thermogravimetric and dielectric measurements. The phenanthrene-based benzene, naphthalene and biphenyl copolysulfones have also been prepared andcharacterized through these techniques. These pendant and backbone polymer sulfones have exceptionallyhigh thermal stability and electrical conductivity, such that dc conductivity in the range2.80 · 10^-16 to 2.82 × 10^-7 Ω^-1 cm^-1 and ac conductivity in the range 1.69 ×10^-7 to2.10 × 10^-6 Ω^-1 cm^-1.