surface engineering of reduced graphene oxide by grafting poly(butyl acrylate) chains for use in dielectric polymer nano-composites

In the present work, reduced graphene oxide (rgo) was grafted by poly(butyl acrylate) via atom transfer radical polymerization (atrp) in order to engineer the surface properties of particles for dielectric applications of polymer nano-composites. the grafting density and ratio of the matrix molecular weight to grafted ones were controlled to allow proper interaction between grafted polymer chains and the matrix chains. the results of ftir, raman analysis, and tem confirmed successful anchoring of polymer brushes onto rgo. the high dielectric permittivity and low dielectric loss were achieved by incorporating 0.1 wt% of designed particles into the polymer matrix.