Open AccessInvestigation of the dielectric properties of Sn – doped PMMA/PVA blends
Author(s) -
Ahamad Hasan
Publication year - 2019
Publication title -
iraqi journal of physics
Language(s) - English
Resource type - Journals
eISSN - 2664-5548
pISSN - 2070-4003
DOI - 10.30723/ijp.v12i25.310
Subject(s) - materials science , dielectric , polyvinyl alcohol , dielectric loss , doping , conductivity , casting , composite material , polymer blend , electrical resistivity and conductivity , polymer chemistry , polymer , copolymer , chemistry , optoelectronics , electrical engineering , engineering
Blends of Polymethyl methacrylate (PMMA)/polyvinyl alcohol (PVA) doped with 2% weight percentage of Sn were prepared with different blend ratios using casting technique. The measurements of A.C conductivity σa.c within the frequency range (25kHz – 5MHz) of undoped and Sn doped PMMA/PVA blends obeyed the relationship σ= Aws were the value of s within the range 0 > s > 1. The results showed that σa.c increases with the increase of frequency. The exponent s showed preceding increase with the increase of PVA content for PMMA/PVA blends doped with Sn. The dielectric constant, dielectric loss, A.C electrical conductivity are varied with the concentration of PVA in the blend and frequency of applied electrical field.