Abstract
Graphene doped polyaniline (G-PANI) nanocomposites with good electromagnetic properties were synthesized using an in situ emulsion polymerization method. Polyaniline was synthesized in ammonium persulfate and hydrochloric acid solution system. Graphene was added during the polymerization of aniline. Scanning electron microscopy and transmission electron microscopy analyses were performed to characterize the morphology of the nanocomposites. X-ray photoelectron spectroscopy provided the evidence for the oxidation of graphene. Conductivity and electromagnetic performances of polyaniline were improved after graphene doping. The reflection loss of G-PANI showed that the best electromagnetic wave absorbing was achieved at the graphene/polyaniline mass ratio of 1.5 × 10−3.
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