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  • Fabrication and characterization of graphene/poly(p-phenylenediamine) hybrids.

Fabrication and characterization of graphene/poly(p-phenylenediamine) hybrids.

Journal of nanoscience and nanotechnology (2013-07-19)
Niranjanmurthi Lingappan, Beomhwal Cho, Myungjae Jang, Byung Chun Choi, Yeong-Soon Gal, Kwon Taek Lim
ABSTRACT

Graphene nanosheets functionalized with poly(p-phenylenediamine) (PPDA) were prepared via the in-situ chemical oxidative polymerization using potassium persulphate as a catalyst. Graphene nanosheets were previously prepared by chemical reduction of exfoliated graphite oxide. The structure and morphology of the composite material were characterized by FTIR, XPS, HRTEM, FESEM and XRD, while the thermal and electrical properties were measured by TGA and a four-probe method. FESEM and HRTEM observations indicated that the graphene sheets were encapsulated in the PPDA matrix. Furthermore, the nanocomposites exhibited improved conductivity and thermal stability as compared with pure PPDA.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Graphite, powder, <45 μm, ≥99.99% trace metals basis
Sigma-Aldrich
Graphite, powder, <150 μm, 99.99% trace metals basis
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Graphite, flakes
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Graphite, powder, <20 μm, synthetic
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Graphite, rod, L 150 mm, diam. 6 mm, 99.995% trace metals basis
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Graphite, rod, L 150 mm, diam. 3 mm, low density, 99.995% trace metals basis