Control of microwave reflectivities of polymer electrolyte-silver-polyaniline composite materials

Discs of composites of particular poly(aniline hydrochloride) or poly(aniline hydrotetrafluoroborate) and silver in a poly(ethylene oxide)-AgCF 3SO 3 polymer electrolyte were characterized using microwaves over the frequency range 0.5–3.0 GHz in a coaxial line. The materials demonstrated a rapid and...

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Bibliographic Details
Published in:Electrochimica acta Vol. 43; no. 10; pp. 1629 - 1632
Main Authors: Barnes, A, Despotakis, A, Wright, P.V, Wong, T.C.P, Chambers, B, Anderson, A.P
Format: Journal Article Conference Proceeding
Language:English
Published: Oxford Elsevier Ltd 01-01-1998
Elsevier
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Summary:Discs of composites of particular poly(aniline hydrochloride) or poly(aniline hydrotetrafluoroborate) and silver in a poly(ethylene oxide)-AgCF 3SO 3 polymer electrolyte were characterized using microwaves over the frequency range 0.5–3.0 GHz in a coaxial line. The materials demonstrated a rapid and reversible change in their microwave reflectivity when a dc potential of 5 volts was applied across them. A coaxial line test set was used to observe changes of 15–20 dB in microwave reflectivities and displacements of ca 0.25 GHz in the resonance condition. The observations are tentatively discussed in terms of reversible changes in conductivities of the particulate components and the capacitance within ‘microcells’ of polyaniline/polymer electrolyte/silver.
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ISSN:0013-4686
1873-3859
DOI:10.1016/S0013-4686(97)10064-0