Effect of Titanium Dioxide Nanoparticles on Temperature Dependent Electrical Conductivity of Poly (n-butyl methacrylate) Nanocomposites: Application of Different Conductivity Models

摘要

This paper focused on the electrical properties of poly (n-butyl methacrylate) using nanostructured TiO_2 as an additive material and these composites were prepared by a simple in situ polymerization of butyl methacrylate with different content of TiO_2. The temperature dependent AC conductivity of the nanocomposite was investigated and conductivity increases with raise in temperatures, frequencies and the volume fraction of TiO_2nanoparticles. The activation energy of the nanocomposite materials were determined. The variation of DC conductivity with the addition of nanoparticles in poly (n-butyl methacrylate) was correlated with different theoretical conductivity model based on Bueche, Scarisbrick and McCullough equations.