A new tetrachloroferrate-doped (FeCl-4) salt of emeraldine (polyaniline) has been obtained in a non-aqueous medium. From elemental analysis and Mössbauer studies, the salt has been identified to contain iron exclusively in the +3 oxidation state. Data on temperature-dependent d.c. conductivity and dielectric constant measurements on the doped polyaniline salt in the X-band of the microwave region are also discussed. © 1992.

Sampat Raj Vadera

Department of Physics

IIT Jodhpur

N. Kumar

P.C. Jana

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Journal	Polymer
ISSN	00323861