Author/Authors :
Arbuckle، نويسنده , , G.A. and Buecheler، نويسنده , , N.M. and Hall، نويسنده , , J.W. and Valentine، نويسنده , , K.G. and Lefrant، نويسنده , , S. and Mevellec، نويسنده , , J.Y. and Mulazzi، نويسنده , , E.، نويسنده ,
Abstract :
Results of spectroscopic measurements of three types of highly conducting polyacetylene are presented. A comparison is made of the traditional Shirakawa (or S-(CH)x), Naarmann (or N-(CH)x) and Tsukamoto (or v-(CH)x) polyacetylenes. The non-conducting undoped materials have been characterized by 13C CPMAS NMR. FT-IR and resonance Raman scattering. A higher conductivity for iodine-doped N- (CH)x and v-(CH)x) in comparison with S-(CH)x is observed even though a greater sp3 content is found in N-(CH)x and v-(CH)x films. Since the sp3 hybridized carbons may belong to catalyst residues, the sp3 content does not correlate with conductivity. On the other hand, it is shown from the resonance Raman scattering data that a longer average conjugation length in N-(CH)x and v-(CH)x may correlate with the higher conductivities of the iodine-doped films.
