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@article{Au:2018:10.1039/c7sc03455e,
author = {Au, H and Rubio, N and Shaffer, MSP},
doi = {10.1039/c7sc03455e},
journal = {Chemical Science},
pages = {209--217},
title = {Brominated graphene as a versatile precursor for multifunctional grafting},
url = {http://dx.doi.org/10.1039/c7sc03455e},
volume = {9},
year = {2018}
}

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TY  - JOUR
AB  - A non-destructive and versatile chemical reduction method was used to dissolve and subsequently brominate few-layer graphene sheets (FLGs); the direct covalent attachment of bromine to the graphene framework was demonstrated by X-ray photoelectron spectroscopy (XPS). The brominated few-layer graphenes (FLG-Br) provide a convenient, stable, liquid-phase precursor, suitable for the synthesis of a variety of directly functionalised graphenes. As an example, the FLG-Br species was used to initiate atom transfer radical polymerisation (ATRP), to obtain poly(methyl methacrylate) (PMMA)-grafted graphene (FLG-PMMA), which was six times more dispersible in acetone than controls. In addition, the FLG-Br is active for nucleophilic substitution reactions, as illustrated by the preparation of methoxypolyethylene glycol (mPEG)- and OH-substituted derivatives. The products were characterised by thermogravimetric analysis coupled with mass spectrometry (TGA-MS), XPS and Raman spectroscopy. Grafting ratios (GR) for these polymer-grafted materials varied between 6 and 25%; even at these GRs, all graphene derivatives showed increased solubility in organic solvents.
AU  - Au,H
AU  - Rubio,N
AU  - Shaffer,MSP
DO  - 10.1039/c7sc03455e
EP  - 217
PY  - 2018///
SN  - 2041-6520
SP  - 209
TI  - Brominated graphene as a versatile precursor for multifunctional grafting
T2  - Chemical Science
UR  - http://dx.doi.org/10.1039/c7sc03455e
UR  - http://hdl.handle.net/10044/1/56800
VL  - 9
ER  -

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Prof Milo Shaffer

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