Electrical properties of polyaniline suspensions

doi:10.1016/S0379-6779(98)00107-6

Synthetic Metals

Volume 97, Issue 1, 30 August 1998, Pages 37-42

https://doi.org/10.1016/S0379-6779(98)00107-6 Get rights and content

Abstract

The ordering of electrically conducting polyaniline particles dispersed in a non-conducting liquid, 1,2,4-trichlorobenzene, in a weak electric field (of the order V mm⁻¹) has been studied. The time needed for the formation of conducting chains, depending on the applied voltage, the polyaniline concentration and the viscosity of the suspension medium, was used to calculate the effective relative electric permittivity for polyaniline, ɛ_p = 4.8, responsible for the dipole-dipole interaction leading to the structure formation. Nonlinear limit current-voltage characteristics typical of electrorheological suspensions were observed. The formation of the conducting chains could be followed in an optical microscope.

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Electrical properties of polyaniline suspensions

Abstract

Talanta

Polymer

J. Colloid Interface Sci.

Faraday Discuss. Chem. Soc.

Macromolecules

Macromolecules

Rheol. Acta

Mod. Phys. Lett. B