Embedded capacitor applications of graphene oxide reinforced poly(3,4-ethylenedioxythiophene)-tetramethacrylate (PEDOT-TMA) composites

Abstract

We report synthesis and characterizations of graphene oxide (GO) reinforced poly(3,4-ethylene dioxythiophene)-tetra methacrylate (PEDOT-TMA)/polymethylmethacrylate (PMMA) based novel composites. The composites were prepared by colloidal blending. The interaction between GO, PEDOT-TMA and PMMA chains were characterized by using UV–Vis spectroscopy, X-ray diffraction, thermogravimetric analysis, Fourier transforms infrared spectroscopy, FT-Raman spectroscopy, atomic force microscopy (AFM) and scanning electron microscopy. The microstructure of composites shows that GO was homogeneously dispersed in the polymer matrix. AFM studies reveal an increase in surface roughness as a function of GO loading. A significant improvement in the thermal stability of composites was observed as a function of GO loading which is due to the presence of high surface area GO in the polymer matrix. The composites show high values of dielectric constant and low values of dielectric loss which resulted from homogeneous dispersion of GO in the polymer matrix. This study suggests that the composites have the potential to be used for suitable electronic applications with desired dielectric properties.