Study of Motion of Impurity Ions Making Influence on Electrical Properties of Polymer Solids in Low Frequency Range

Abstract:

The motion of impurity ions affects the electrical properties of polymer solid. The ions move through free spaces which exist in the non-crystalline part between polymer crystallites. The free spaces have inhomogeneous size distribution depending on a property of polymers or crystallization conditions. The homogeneity or inhomogeneity of the size of the free space affects the ionic motion, and consequently it also affects the electrical properties of polymer solids. In order to study the electrical properties of polymer solids in relation with such motion of impurity ions, the conductivity relaxation time was calculated for isotactic poly (propylene) (iPP), low density poly (ethylene) (LDPE) and plasticized poly (vinyl chloride) with dioctyl phthalate (p-PVC) from the electric modulus as a function of frequency which was observed by means of the Broadband Dielectric Spectroscopy (BDS). The value of the conductivity relaxation time reflects the non-crystalline structure of these polymers.

• Periodical: Advanced Materials Research (Volume 740)
• Pages: 630-635
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.740.630
• Online since: August 2013
• Authors: Yui Chi Anada
• Keywords: Crystallite, Electric Modulus, Ionic Motion, Isotactic Poly(Propylene), Low Density Polyethylene (LDPE), Non-Crystalline, Plasticized Poly(Vinyl Chloride)

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