Facile synthesis of highly conductive polyaniline/graphite nanocomposites

Du, Xiaomeng; Xiao, Min; Ye, Meng

doi:10.1016/j.eurpolymj.2004.02.009

Cited by 163 publications

(92 citation statements)

References 18 publications

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“…However, only monomers such as aniline, [14] styrene [15] and methylmethacrylate [16] have been used so far. No reports on in situ polymerization with polypropylene/ graphite have been published yet.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Poly(propylene)/Graphite Nanocomposites by in Situ Polymerization

Montagna

Fim

Galland

et al. 2011

Macromolecular Symposia

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Summary: This work presents the synthesis of polypropylene/graphite nanocomposites by in situ polymerization using the catalytic system C 20 H 16 Cl 2 Zr (rac-ethylenebis (indenyl)zirconium(IV)) dichloride/Methyoluminoxane (MAO). 60 nm graphite nanosheets (GNS) were obtained by means of the chemical exfoliation, thermal and ultrasound treatment. GNS previously treated with MAO were added into the reactor at percentages of 0.3, 1.0 and 2.2% (w/w) in relation to nanocomposite yields. The morphology of graphite nanosheets and nanocomposites was studied by Scanning Electron Microscopy (SEM). Moreover, the structural properties of natural graphite flake (NGF), graphite nanosheets (GNS) and nanocomposites were observed through the X-Ray diffraction (XRD) analysis and by Transmission Electron Microscopy (TEM).

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Section: Introductionmentioning

confidence: 99%

Synthesis of Poly(propylene)/Graphite Nanocomposites by in Situ Polymerization

Montagna

Fim

Galland

et al. 2011

Macromolecular Symposia

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“…These are typical values in carboxylated graphenes. 4,[12][13][14][15][16] However, the bands of νC=O in COO -of europium bonded graphene appeared at around 1650 and 1400 cm…”

Section: Resultsmentioning

confidence: 99%

Preparation and Physical Properties of Red-photoluminescent Graphene/Europium(III)/Picolinate

Kim¹,

Lee²,

Kim³

et al. 2010

Bulletin of the Korean Chemical Society

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Novel photoluminescent graphene, graphene/europium/picolinate, was made from the reaction of the graphene carboxylate, europium(III) and α-pyridoin anion in methanol solution. There was evidence on IR spectroscopic data that europium metal was coordinated by graphene carboxylate. The graphene/europium/picolinate materials emitted the red luminescence with main peaks at 609 and 695 nm, when solid sample was excited by an UV light at the wavelength of 254 nm. The surface morphology and physical properties of the graphene/europium/picolinate product have been investigated by IR, PL, SEM, TEM and TGA measurements.

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“…[38] Prior to our report of an unusual increase in electrical conductivity for G-PANI composites, very little work had been done on such systems especially Raman investigations. The systems previously reported in literature were GO-PANI composites, [25,26] G-PANI composites with low concentration of graphite (i.e., <5%), [41,42] and our work on G-PANI composites with graphite concentrations from 0 to 100% [31,[43][44][45] . No correlation has been reported so far between the structural changes, as reflected by Raman and XRD data, with the corresponding thermal stability and the unusual increase in electrical conductivity for different ratios of G:PANI.…”

Section: Resultsmentioning

confidence: 99%

Structural, Electrical, and Thermal Behavior of Graphite‐Polyaniline Composites with Increased Crystallinity

Bourdo

Biris

et al. 2008

Adv Funct Materials

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Conductive materials are at the forefront of materials science research because of the large number of applications that have been developed around their interesting and unique properties. This work reports for the first time a correlation between the structural, electrical, and thermal behavior of novel graphite‐polyaniline (G‐PANI) composites with electrical conductivities greater than either of the individual components. The G:PANI mass ratio was varied during synthesis of the composites (90:10, 95:5, 96:4, 97:3, and 98:2 G:PANI mass ratios) and the highest electrical conductivity was determined for the composite having a G:PANI mass ratio of 96:4. The structural changes related to this increase in electrical conductivity were clearly reflected by the Raman spectra of the new composites, which indicated an improved crystallinity through a better stacking along the c‐axis of graphite when PANI was present (as evidenced by the G and 2 × D modes at 1582 and 2684 cm−1). X‐ray diffraction data showed a slight increase in the (0 0 2) graphite crystal plane distance that was associated with a dilute stage intercalation or a possible “pseudo‐intercalation” of the polymer species between the graphite layers facilitating charge transfer in the composites. It is proposed that polyaniline acts as a charge transfer component between basal planes of graphite. Thermogravimetric analyses of the samples showed similar trends for the thermal stability in accordance with the electrical conductivity, the Raman and X‐ray diffraction data. The potential impact of this work is evident in the many areas that utilize graphite as conductive filler in electrically conducting materials. The composites can be used for a large number of applications in nanoelectronics, electromagnetic interference shielding, rechargeable batteries or as other advanced nanocomposite materials with improved electrical, structural, and thermal properties.

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Facile synthesis of highly conductive polyaniline/graphite nanocomposites

Cited by 163 publications

References 18 publications

Synthesis of Poly(propylene)/Graphite Nanocomposites by in Situ Polymerization

Synthesis of Poly(propylene)/Graphite Nanocomposites by in Situ Polymerization

Preparation and Physical Properties of Red-photoluminescent Graphene/Europium(III)/Picolinate

Structural, Electrical, and Thermal Behavior of Graphite‐Polyaniline Composites with Increased Crystallinity

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