Synthesis and characterization of covalently linked graphene/chitosan composites

Journal Article


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Abstract


  • Chitosan, a naturally derived polysaccharide, was covalently linked to chemically converted graphene (CCG) and the properties of the resulting composites were investigated. The composites were prepared using a stable dispersion of CCG in aqueous solvent. The CCG sheets are stabilised in solution by a small number of peripheral charged groups that can be used to form amide linkages with the polymer matrix. Apart from processability and swellability, the synthesized composites exhibited improved mechanical properties and conductivity by the addition of graphene. Graphene incorporation also introduced a control over the extent of swelling in the composites. The synthesized graphene/composites are promising materials for a variety of applications, for example as conducting substrates for the electrically stimulated growth of cells.

Publication Date


  • 2016

Citation


  • Sayyar, S., Murray, E., Gambhir, S., Spinks, G., Wallace, G. G. & Officer, D. L. (2016). Synthesis and characterization of covalently linked graphene/chitosan composites. JOM, 68 (1), 384-390.

Scopus Eid


  • 2-s2.0-84938651725

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2688&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1686

Number Of Pages


  • 6

Start Page


  • 384

End Page


  • 390

Volume


  • 68

Issue


  • 1

Place Of Publication


  • United States

Abstract


  • Chitosan, a naturally derived polysaccharide, was covalently linked to chemically converted graphene (CCG) and the properties of the resulting composites were investigated. The composites were prepared using a stable dispersion of CCG in aqueous solvent. The CCG sheets are stabilised in solution by a small number of peripheral charged groups that can be used to form amide linkages with the polymer matrix. Apart from processability and swellability, the synthesized composites exhibited improved mechanical properties and conductivity by the addition of graphene. Graphene incorporation also introduced a control over the extent of swelling in the composites. The synthesized graphene/composites are promising materials for a variety of applications, for example as conducting substrates for the electrically stimulated growth of cells.

Publication Date


  • 2016

Citation


  • Sayyar, S., Murray, E., Gambhir, S., Spinks, G., Wallace, G. G. & Officer, D. L. (2016). Synthesis and characterization of covalently linked graphene/chitosan composites. JOM, 68 (1), 384-390.

Scopus Eid


  • 2-s2.0-84938651725

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2688&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1686

Number Of Pages


  • 6

Start Page


  • 384

End Page


  • 390

Volume


  • 68

Issue


  • 1

Place Of Publication


  • United States