Abstract
Besides conductivity measurements, the specific contribution of this work is to present dielectric measurements of conductive composites in the microwave region. The composite materials are made of polypyrrole inan insulating phase. Two kinds of materials have been investigated: blends (polypyrrole in butyl elastomer, polypyrrole in epoxy resin) and in situ composites (chemical synthesis of polypyrrole in a PTFE emulsion). Dielectric measurements permit to know the variation of the complex dielectric constant (ɛ* = ɛ′ - jɛ″), with frequency from 130 MHz ot 18 GHz. In the range of frequency investigated a plot of log (ɛ″) versus log (frequency) is linear with a slope S. Interesting informations about structure of materials and nature of particles aggregation are given by S.
Keywords
- Conductive Polymer
- Dielectric Measurement
- Conductive Composite
- Complex Dielectric Constant
- Microwave Property
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© 1992 Springer-Verlag Berlin Heidelberg
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Hourquebie, P., Olmedo, L., Deleuze, C. (1992). Microwave Properties of Conductive Polymer Composites. In: Kuzmany, H., Mehring, M., Roth, S. (eds) Electronic Properties of Polymers. Springer Series in Solid-State Sciences, vol 107. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-84705-9_24
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DOI: https://doi.org/10.1007/978-3-642-84705-9_24
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-84707-3
Online ISBN: 978-3-642-84705-9
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