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Graphene Nanocomposites Prepared From Blends of Polymer Latex with Chemically Reduced Graphite Oxide Dispersions
Author(s) -
Wissert Rainer,
Steurer Peter,
Schopp Stephanie,
Thomann Ralf,
Mülhaupt Rolf
Publication year - 2010
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201000263
Subject(s) - materials science , graphene , compounding , nanocomposite , graphite , graphite oxide , oxide , polymer , dispersion (optics) , emulsion , polymer nanocomposite , composite material , chemical engineering , nanotechnology , metallurgy , optics , physics , engineering
Graphene nanocomposites are prepared by chemical reduction of graphite oxide (GO) dispersion with vitamin C in the presence of SAN latex followed by melt compounding. In this process, GO is well dispersed in an aqueous SAN emulsion before reduction. During reduction the SAN latex is adsorbed on the graphene sheets of the chemically reduced GO (CRGO). After melt compounding of such hybrid particles with SAN, the nanocomposites show uniform dispersion of CRGO in SAN resulting in improved stiffness with respect to SAN/graphite. The reduction of GO in the presence of polymer latex represents a versatile route to graphene masterbatches and does not require either drying of GO or thermal GO expansion at high temperatures.