Sublinear dispersive conductivity in polyetherimides by the electric modulus formalism
IEEE Transactions on Dielectrics and Electrical Insulation（2015）
Abstract
Two commercially available polyetherimides, Ultem 1000 and Ultem 5000, have been studied by means of Dynamic Electrical Analysis. Results show that at temperatures above the glass transition dielectric response is highly influenced by space charge. Obtained data is analyzed using the electric modulus formalism. The real part of the conductivity is conveniently described by a sublinear power law de...
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Key words
Conductivity,Mathematical model,Temperature measurement,Glass,Dispersion,Temperature distribution
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