Graphene nanosheets generated from sulfonated polystyrene/graphene nanocomposite

Resistance of composite films based on polystyrene and graphene oxide

“…1). The particles of GO are arranged parallel to the substrate and do not form a multilayer assemblies, which typical for graphene due to π − π-stacking [23]. This fact explains the little thickness of the composite at which conductivity is observed.…”

Thin nanocomposite layers based on a complex of polyaniline and graphene

“…As opposed to unoxidized graphene G1, semioxidized graphene G2 contains surface functional groups (carbonyl, hydroxy, epoxy groups) [10]. In this connection, semioxidized graphene G2, apart from π-π interaction with PANI as similarly to graphene G1, can form hydrogen bonds with sulfogroups of PAMPSA [8] due to its functional groups. The latter hinders aggregation of G2 into stacks and leads to a more uniform distribution of graphene in the nanocomposite, thus considerably expanding the network of charge transport paths in a nanocomposite film, which ultimately results in an increase in the mobility of charge carriers.…”

“…Unoxidized graphene G1 can manifest π-π interaction between its basal plane and PANI back bone [6], and thus graphene G1 can form chargetransport paths between PANI chains. On the other hand, the tendency toward π-π interaction results in the fact that graphene G1 will more likely aggregate in the form of stacks [8] and not be distributed in the nanocomposite film in the form of separate nanopar ticles. In this case, the concentration of new charge transport paths increases slightly, which explains a negligible increase in conductivity of the PANI/G1 nanocomposite as compared to PANI.…”

“…Of the nanocomposite materials for development of nanocomposites with PANI, graphene appears to be the most interesting material due to its possible inter action with the polymer [6][7][8]. Apart from such unique properties of graphene as its relatively large ordered surface, high mobility of charge carriers and high stability, it is a relatively cost effective material.…”

Electroactive behavior of graphene nanoplatelets loaded cellulose composite actuators

“…When compared to the electrical conductivity of MCC-BMCl, an increment of 46% was determined. An important reason for this improvement in electrical conductivity values may be attributed to combinations of highly conductive graphene in the MCC-BMCl [28,38]. Jung et al investigated the electrical conductivity of electro-active actuators based on graphene reinforced Nafion composite electrolytes.…”