Hexylamine functionalized reduced graphene oxide/polyurethane nanocomposite-coated nylon for enhanced hydrogen gas barrier film

Bandyopadhyay, Parthasarathi; Park, Woong Bi; Layek, Rama K.; Uddin, Elias; Kim, Nam Hoon; Kim, Hong-Gun; Lee, Joong Hee

doi:10.1016/j.memsci.2015.11.029

Cited by 85 publications

(20 citation statements)

References 39 publications

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“…Surface modification of graphene has shown to be an effective method to improve the polymer/filler compatibility which in turn also improves the gas barrier properties of graphene filled polymer composites [30][31][32]. This strategy of surface modification of graphene has also been followed by others to improve the tribological performance of PTFE nanocomposites [33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Gas barrier properties of oxyfluorinated graphene filled polytetrafluoroethylene nanocomposites

Rooyen

Bissett

Khoathane

et al. 2016

Carbon

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Section: Introductionmentioning

confidence: 99%

Gas barrier properties of oxyfluorinated graphene filled polytetrafluoroethylene nanocomposites

Rooyen

Bissett

Khoathane

et al. 2016

Carbon

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“…The increase in I D /I C ratio clearly demonstrate the defect in graphene sheet caused by the silane grafting that might leads to considerable changes in the physic-chemical, structural and electrical properties. This result shows that the functionalization of GO with APTES alters the structure of GO through the formation of more sp 3 carbon within the sp 2 carbon network of graphene, resulting in higher of I D /I G in AGO [27]. The forward shifting of G band position also confirm the assimilation of silane moieties in the GO framework implying better exfoliation of graphene layer [3].…”

Section: Resultsmentioning

confidence: 97%

Gamma-Irradiation Induced Functionalization of Graphene Oxide with Organosilanes

Aujara

Chieng

Ibrahim

et al. 2019

IJMS

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Gamma-ray radiation was used as a clean and easy method for turning the physicochemical properties of graphene oxide (GO) in this study. Silane functionalized-GO were synthesized by chemically grafting 3-aminopropyltriethoxysilane (APTES) and 3-glycidyloxypropyltrimethoxysilane (GPTES) onto GO surface using gamma-ray irradiation. This established non-contact process is used to create a reductive medium which is deemed simpler, purer and less harmful compared conventional chemical reduction. The resulting functionalized-GO were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), thermogravimetric analysis (TGA), and Raman spectroscopy. The chemical interaction of silane with the GO surface was confirmed by FT-IR. X-ray diffraction reveals the change in the crystalline phases was due to surface functionalization. Surface defects of the GO due to the introduction of silane mioties was revealed by Raman spectroscopy. Thermogravimetric analysis of the functionalized-GO exhibits a multiple peaks in the temperature range of 200–650 °C which corresponds to the degradation of chemically grafted silane on the GO surface.

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“…Lee et al prepared alkylamino substitutedg raphenes and demonstrated their use as materials for hydrogen gas barrier membranes. [128] The azido group on graphene was used interconnecta lkynyl-DNA with graphene by "click" reaction. The graphene-DNA adductw as exceptionally stable andm ight be used for example as biosensors for DNA detection.…”

Section: Applications Of Modified Graphenesmentioning

confidence: 99%

Chemistry of Graphene Derivatives: Synthesis, Applications, and Perspectives

Šturala

Luxa

Pumera

et al. 2018

Chemistry A European J

117

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The chemistry of graphene and its derivatives is one of the hottest topics of current material science research. The derivatisation of graphene is based on various approaches, and to date functionalization with halogens, hydrogen, various functional groups containing oxygen, sulfur, nitrogen, phosphorus, boron, and several other elements have been reported. Most of these functionalizations are based on sp hybridization of carbon atoms in the graphene skeleton, which means the formation of out-of-plane covalent bonds. Several elements were also reported for substitutional modification of graphene, where the carbon atoms are substituted with atoms like nitrogen, boron, and several others. From tens of functional groups, for only two of them were reported full functionalization of graphene skeleton and formation of its stoichiometric counterparts, fluorographene and hydrogenated graphene. The functionalization of graphene is crucial for most of its applications including energy storage and conversion devices, electronic and optic applications, composites, and many others.

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Hexylamine functionalized reduced graphene oxide/polyurethane nanocomposite-coated nylon for enhanced hydrogen gas barrier film

Cited by 85 publications

References 39 publications

Gas barrier properties of oxyfluorinated graphene filled polytetrafluoroethylene nanocomposites

Gas barrier properties of oxyfluorinated graphene filled polytetrafluoroethylene nanocomposites

Gamma-Irradiation Induced Functionalization of Graphene Oxide with Organosilanes

Chemistry of Graphene Derivatives: Synthesis, Applications, and Perspectives

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