Heat treatment effects on dielectric and physico-chemical properties of an epoxy polymer

Thermally stimulated depolarization current and dielectric spectroscopy used to study dipolar relaxations and trap level distribution in PMMA polymer

“…We propose a new experimental protocol for TSDC measurements (fractional polarization) to investigate space charge trap depth distribution within the band-gap of PMMA polymer. In contrast with all previous TSDC measurements on polymers [32][33][34], we for the first time employ this new method, which allows us to check for the possibility of evaluating the dipolar and trap states. We report on the activation energy, and the traps level distribution in PMMA.…”

Study of relaxations in epoxy polymer by thermally stimulated depolarization current (TSDC) and dielectric relaxation spectroscopy (DRS)

“…Previous studies [8][9][10][11][12] have been carried out in our laboratory to study the structural, electrical and optical properties of an epoxy-amine polymer. It has been demonstrated by means of TSDC, thermal step (TS) and IR spectroscopy techniques that this polymer presents a high polar character and the polarization depends strongly on its thermal history.…”

Photoluminescence of epoxy/clay nanocomposites

“…1a) presented a broad band at 3423 cm −1 attributable to OH groups and intense multiplete bands at the 2960–2920 cm −1 region due to the CH stretching in the methyl and methylene groups. The distinctive band related to the aromatic content of the epoxy at 3032 cm −1 was also observed [19, 20].…”