Improvement of Mechanical Properties of Graphene Oxide / Poly(allylamine) Composites by Chemical Crosslinking
Citation:
Amro Satti, Patrick Larpent and Yurii Gun'ko, Improvement of Mechanical Properties of Graphene Oxide / Poly(allylamine) Composites by Chemical Crosslinking, Carbon, 48, 12, 2010, 3376-3381Download Item:
Abstract:
Graphite oxide was prepared by oxidation of graphite using the Hummers method, and its ultrasonication in water yielded dispersed graphene oxide (GO) sheets. These sheets were then crosslinked with a water soluble polymer, namely poly (allylamine) hydrochloride (PAH), by cabodiimide coupling. Free standing composite films were obtained by filtration. These crosslinked composites showed better mechanical properties than unmodified GO films and those of composites that were made by simple mixing of GO and PAH. The filtration process was optimized to produce strong GO films which were subsequently crosslinked with PAH in-situ to produce very strong composites with tensile strengths up to146 MPa.
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Grant Number
Science Foundation Ireland (SFI)
Author's Homepage:
http://people.tcd.ie/sattiahttp://people.tcd.ie/igounko
Description:
PUBLISHED
Author: SATTI, AMRO; GOUNKO, IOURI
Type of material:
Journal ArticleCollections
Series/Report no:
Carbon48
12
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Full text availableKeywords:
ChemistrySubject (TCD):
Nanoscience & MaterialsMetadata
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