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|Author(s):||Jan Obrzut; C. K. Chiang;|
|Title:||Microwave Dielectric Characterization of Polyaniline Composites|
|Published:||January 01, 2000|
|Abstract:||Dielectric permittivity of polyaniline (emerdaline salt) and its dispersions in epoxy glasses have been investigated in the frequency rangebetween 1 GHz to 18 GHz by using the reflection - transmission method. The observed high value of the dielectric constant is attributed to polarizability originating from a delayed charge transfer between conducting domains with an apparent relaxation at about 6.8 GHz. Incomposites in which this interaction is ceased by a nonconducting phase boundary the microwave dielectric polarizability becomes reminiscent of localized states in organic solids.|
|Citation:||Proceedings of the MRS Symposium|
|Keywords:||microwave dielectric permittivity,polyaniline,polymer composites|
|Research Areas:||Nanostructured Materials|
|PDF version:||Click here to retrieve PDF version of paper (69KB)|