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Solubility and Dispersion Characteristics of Polyaniline

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Abstract

We have demonstrated that the solubility characteristics of undoped polyaniline can be understood from the point of view of standard solubility parameters which measure the propensity for the polymer and the solvent to engage in dispersive, polar, and hydrogen bonding interactions. By empirical measures and group additive calculations, emeraldine base has been shown to be characterized by solvent interaction parameters: δd = 17.4 MPa1/2, δp = 8.1 MPa1/2, and δh = 10.7 MPa1/2, which together are equivalent to a total solubility parameter: δ = 22.2 MPa1/2. In the case of doped polyanilines, the solubility parameters can influence or even dominate the interactions of the doped polymer. Without the modifying influence of the dopant anion, the doped polyaniline compositions are more strongly polar and hydrogen bonding than the undoped polymer.

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Authors and Affiliations

  1. AlliedSignal Inc., Research & Technology, P.O. Box 1021, Morristown, NJ, 07962-1021, USA

    L. W. Shacklette & C. C. Han

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  1. L. W. Shacklette
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  2. C. C. Han
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Shacklette, L.W., Han, C.C. Solubility and Dispersion Characteristics of Polyaniline. MRS Online Proceedings Library 328, 157–166 (1993). https://doi.org/10.1557/PROC-328-157

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