In situ reduction of graphene oxide dispersed in a polymer matrix

Traina, Matteo; Pegoretti, Alessandro

doi:10.1007/s11051-012-0801-0

Cited by 32 publications

(30 citation statements)

References 15 publications

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“…~10 12 %/sq). However, the resistivity decreases by more than ten orders of magnitude after a thermal treatment at 180°C for 4 h (Table 3), indicating an effective removal of most of the oxidized functional groups which allows the material to re-establish the sp 2 configuration and to increase its surface conductivity [24]. At higher treatment temperatures a further slight resistivity decrease down tõ 3.4·10 1 % /sq can be observed.…”

Section: Surface Resistivitymentioning

confidence: 95%

“…GO can be reduced into graphene through chemical (e.g. by using hydrazine or hydrazine derivatives [21][22][23]) or thermal processes [24][25][26][27]. At the actual state of the art, the easiest way to produce bulk quantities of graphene is based on the reduction of GO [28][29][30].…”

Section: Introductionmentioning

confidence: 99%

“…from 300 to 1000°C) are usually required to achieve a complete GO reduction in a reasonable time. When thermally stable polymer matrices are considered, an in-situ thermal reduction of GO nanoplatelets within the polymer matrix can be performed [24,33,34]. At this aim, a liquid crystalline polymer (LCP) matrix, known as Vectran ® , was chosen for the present research, because of its extremely high thermal stability and excellent mechanical properties [35].…”

Section: Introductionmentioning

confidence: 99%

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Liquid crystalline polymer nanocomposites reinforced with in-situ reduced graphene oxide

Pedrazzoli¹,

Dorigato²,

Conti³

et al. 2015

Express Polym. Lett.

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Abstract. In this work liquid-crystalline polymer (LCP) nanocomposites reinforced with in-situ reduced graphene oxide are investigated. Graphene oxide (GO) was first synthesized by the Hummers method, and the kinetics of its thermal reduction was assessed. GO layers were then homogeneously dispersed in a thermotropic liquid crystalline polymer matrix (Vectran ® ), and an in-situ thermal reduction of GO into reduced graphene oxide (rGO) was performed. Even at low rGO amount, the resulting nanocomposites exhibited an enhancement of both the mechanical properties and the thermal stability. Improvements of the creep stability and of the thermo-mechanical behavior were also observed upon nanofiller incorporation. Furthermore, in-situ thermal reduction of the insulating GO into the more electrically conductive rGO led to an important surface resistivity decrease in the nanofilled samples.

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Section: Surface Resistivitymentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Liquid crystalline polymer nanocomposites reinforced with in-situ reduced graphene oxide

Pedrazzoli¹,

Dorigato²,

Conti³

et al. 2015

Express Polym. Lett.

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“…5, TGA was utilized to investigate the thermal stability of pure PVP and PVP nanocomposites. The first mass loss stage, below 100 °C, is due to the evaporation of adsorbed water, and the second one, for temperatures over 350 °C, is related to the PVP degradation [28].…”

Section: Structure and Morphologymentioning

confidence: 99%

Synthesis and Characterization of Poly(vinyl pyrrolidone)/Reduced Graphene Oxide Nanocomposite

Chen

Cheng

Ding

2015

Journal of Macromolecular Science, Part B

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Poly (vinyl pyrrolidone) (PVP)/reduced graphene oxide (RGO) nanocomposites were synthesized by reducing graphene oxide in the polymer matrix at different temperatures.The effects of the graphene oxide (GO) content on the properties of the nanocomposites were investigated by Fourier-transform infrared (FTIR) spectroscopy and thermogravimetric analysis (TGA). The degree of dispersion of GO in the PVP matrix was examined by field-emission scanning electron microscopy (FESEM). The results showed that both GO and RGO were well dispersed in the PVP matrix. Under low filler content, the improvement of onset decomposition temperatures of PVP nanocomposites was not obviously observed, but the amounts of residual char of the PVP nanocomposites were clearly increased. In addition, the decomposition temperature peak values of the PVP nanocomposites were increased, while the peak was broadened.

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“…This strategy was adopted by Liu et al 29 in which simultaneous dispersion and thermo-reduction of GO occurs during in situ melt polycondensation reaction. The in situ reduction of graphene oxide provides homogenous dispersion of graphene into polymer matrix and additionally improves the electrical and thermal conductivity in the composite [32][33][34][35][36] . Further, it was demonstrated that polyester chains were successfully grafted onto GO sheets during polymerization, accompanied by the thermo-reduction from GO to reduced graphene oxide.…”

Section: In Situ Polymerization and Simultaneous Reduction Of Gomentioning

confidence: 99%

A critical review on in situ reduction of graphene oxide during preparation of conducting polymeric nanocomposites

et al. 2015

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In situ reduction of graphene oxide dispersed in a polymer matrix

Cited by 32 publications

References 15 publications

Liquid crystalline polymer nanocomposites reinforced with in-situ reduced graphene oxide

Liquid crystalline polymer nanocomposites reinforced with in-situ reduced graphene oxide

Synthesis and Characterization of Poly(vinyl pyrrolidone)/Reduced Graphene Oxide Nanocomposite

A critical review on in situ reduction of graphene oxide during preparation of conducting polymeric nanocomposites

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