Chemically Functionalized Graphene Nanosheets and Their Influence on Thermal Stability, Mechanical, Morphological, and Electrical Properties of Poly(methyl methacrylate)/Poly(ethylene Oxide) Blend

Poly(methyl methacrylate)/poly(ethylene oxide) (90/10) blend containing various contents of functionalized graphene was prepared through solution technique and characterized to investigate the effects of functionalized graphene content on mechanical, thermal, and electrical properties of the nanocomposites. Infrared results revealed the interaction between matrix and functionalized graphene. Electron microscopy images of the nanocomposites exhibited a good dispersion of functionalized graphene nanosheets in the blend. The incorporation of functionalized graphene significantly increased the thermal stability and mechanical properties of poly(methyl methacrylate)/poly(ethylene oxide) blend. At electrical percolation threshold achieved at functionalized graphene loading of 4.27wt%, the conductivity of the nanocomposites was increased by more than eight orders of magnitude. [GRAPHICS] .