Abstract

Thermoelectrets were prepared using polymethyl methacrylate (PMMA), polystyrene (PS) and their blend in the 50:50 weight ratio. The TSDC spectra of PMMA shows both dipolar and space charge peaks, while the TSDC spectra of PS shows only the space charge peak. The TSDC spectra of the blend however, shows only one peak which is the space charge peak. It is therefore concluded that the PMMA dipoles in the blends are constrained or their contribution to thermoelectret formation is either insignificant or is masked by the space charge polarization.

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