The dielectric properties, measured over the frequency range of 102-107 Hz and at temperatures between 100 K and 400 K, are characterized by two relaxation processes at low temperatures. At temperatures above 300 K the conductivity contribution dominates, with a small electrode polarization effect. The observed frequency and temperature dependence is qualitatively explained in the framework of a jump relaxation model based on the Debye-Hiickel-Falkenhagen theory. At the calorimetrically determined glass transition the measured conductivity is unchanged. This indicates that the mobile charge carriers are not only the counterions themselves but also induced defects.
Посилання на статтю:
Dielectric properties of glassy cationic epoxide-amine addition polymers / F. Kremer and J. Klee // Polymer. – 1992. – Vol 33. – P. 3564-3568.