This study deals with the effect of temperature and frequency on the electrical properties of highly cross-linked epoxy resin/bisphenol Abased polycarbonate. Impedance measurements were carried out on neat resin and on blend containing 10 and 15 wt% of polycarbonate in the frequency range 10–10 6 Hz at 25°C and 100°C. It was found that the impedance, dielectric constant are stable and nearly constant in the measured frequency and temperature range. The plot of the imaginary component of the impedence Z vs frequency at 100°C shows a relaxation peak in the blend which was interpreted as a local mode motion of the hydroxyl group formed during the high temperature dissolution process.
Посилання на статтю:
Polymer Communication Impedance spectroscopy of highly cross-linked epoxy resin/bisphenol A-based polycarbonate / Y. Al-Ramadin, M. Ahmad, A. Zihlif, A. Alnajjar, S. Abdul Jawad, P. Musto, G. Ragosta, E. Martuscelli // Polymer. – 1999. – N 40. – P. 3877–3879.