Improvement of Mechanical Properties of Graphene Oxide / Poly(allylamine) Composites by Chemical Crosslinking

By A. Satti, P. Larpent, Yurii K. Gun'ko. 2010

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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 carbodiimide 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.

Subfields: Biomedical Engineering, Materials Chemistry, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/693ce67d63784f11db4bfb23e9834c4c92db9b5c

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In Materials Chemistry

1. Yun Suk Huh
2. W. Hong
3. H. Park

Citations in the corpus

• Enhanced transport properties in polymer electrolyte composite membranes with graphene oxide sheets (2012, background): “[25] Satti A, Larpent P, Gun’ko Y.”