title: Polystyrene-graphene oxide (GO) nanocomposite synthesized by interfacial interactions between RAFT modified GO and core-shell polymeric nanoparticles.
abstract: Here we report simple and robust one-pot method for the preparation of polystyrene (PS)/graphene oxide (GO) nanocomposite using reversible addition fragmentation chain transfer (RAFT) modified GO in surfactant free emulsion polymerization (SFEP). The results suggested that ionic comonomer, styrene sulfonate sodium salt (SS-Na), concentration plays vital role in forming PS/GO nanocomposite. X-ray and electron diffraction studies suggest that there is no recombination of GO sheets when moderate SS-Na concentration is used, resulting complete exfoliation of GO sheets in the PS/GO nanocomposite. The formation of core-shell particles in which PS is the core and polystyrene sulfonate sodium salt (PSS-Na) is the shell, and the specific interactions between functional groups of GO and PSS-Na are attributed as the driving forces for the PS/GO nanocomposite formation.
authors.affiliation: School of Chemistry, University of Hyderabad, Hyderabad, India.
authors.forename: Niranjan
authors.initials: N
authors.lastname: Yeole
authors.affiliation: School of Chemistry, University of Hyderabad, Hyderabad, India.
authors.forename: S N Raju
authors.initials: SN
authors.lastname: Kutcherlapati
authors.affiliation: School of Chemistry, University of Hyderabad, Hyderabad, India. Electronic address: tusharjana@uohyd.ac.in.
authors.forename: Tushar
authors.initials: T
authors.lastname: Jana
keywords: Emulsion polymerization; Graphene oxide; Ionic comonomer; Polystyrene; RAFT polymerization