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Probing the subglass relaxation behavior in model heterocyclic polymer networks by dielectric spectroscopy
V Y Kramarenko1, T A Ezquerra, V P Privalko
1State Polytechnic University, Frunze 21, 61002 Kharkov, Ukraine.
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|December 12, 2001
Abstract:
The subglass relaxation (beta) in model heterocyclic polymer networks (HPNs) with a controlled ratio of trimerized mono- and diisocyanates was characterized by dielectric spectroscopy in the frequency domain. The beta relaxation in the investigated HPNs follows the Arrhenius law with unusually low values of the preexponential factor (10(-17)