AC conductivity studies of PMMA/TiO2 composites

Polymeric materials have special interest because they are useful for the development of advanced high energy electrochemical devices and photo electro-chemical cells. The importance of polymers is mainly because polymers are still regarded as a cheap alternative material. Recently polymer matrix-ceramic composites receive increased attention due to their electrical and electronic properties. PMMA is highly transparent to visible light, mechanically stable and excellent in insulating properties which made this polymer an candidate for many optical and electrical applications. TiO2 is a UV-resistant material. Used in making chemical fiber, plastics, printing ink, coating, etc. In this work, PMMA/TiO2 composites were prepared by using sol gel method. The composite samples were characterized by XRD, FTIR, DSC and SEM. The incorporation of TiO2 improved the structural, morphological, and conductivity properties of the composite. The dielectric and a.c. conductivity of the samples were found to increase with increase in the concentration of TiO2 and temperature. The synthesized polymer composites were suitable for different technological applications. (C) 2017 Elsevier Ltd. All rights reserved.