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Composites comprising Poly(Methyl Methacrylate) (PMMA) and CaCu3Ti4O12 (CCTO)via melt mixing followed by hot pressing were fabricated. These werecharacterized using X-ray diffraction (XRD), thermo gravimetric (TGA), scanningelectron microscopy (SEM) and Impedance analyser for their structural,morphology and dielectric properties. Composites were found to have betterthermal stability than that of pure PMMA. The composite, with 38 Vol % of CCTO(in PMMA), exhibited remarkably low dielectric loss at high frequencies and thelow frequency relaxation is attributed to the space charge polarization MWSeffect. Theoretical models were employed to rationalise the dielectricbehaviour of these composites. At higher temperatures, the relaxation peakshifts to higher frequencies, due to the merging of both {beta} and {alpha}relaxations into a single dielectric dispersion peak. The AC conductivity inthe high frequency region was attributed to the electronic polarization

Fabrication and Characterization of Poly(methyl methacrylate)CaCu3Ti4O12 Composites