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Issue 32, 2014
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An aggregation-mediated assembly of graphene oxide on amine-functionalized poly(glycidyl methacrylate) microspheres for core–shell structures with controlled electrical conductivity

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Abstract

We present a novel method for regulating the shell thickness of core–shell microspheres consisting of a polymer core and graphene oxide (GO) or a reduced graphene oxide (RGO) shell. A strategy of pH-induced instability of GO and its gradual assembly with the core particles is employed. Interestingly, the thickness of the shell gradually increases from around 20 to 70 nm as the pH of the suspension decreases from 10 to 3 during the assembly process, which significantly changes the electrical properties of the core–shell microspheres. We fabricated core–shell microspheres with a broad range of electrical conductivities from 1.79 to 31.43 S m−1.

Graphical abstract: An aggregation-mediated assembly of graphene oxide on amine-functionalized poly(glycidyl methacrylate) microspheres for core–shell structures with controlled electrical conductivity

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Supplementary files

Article information


Submitted
19 Mar 2014
Accepted
13 Jun 2014
First published
13 Jun 2014

J. Mater. Chem. C, 2014,2, 6462-6466
Article type
Communication
Author version available

An aggregation-mediated assembly of graphene oxide on amine-functionalized poly(glycidyl methacrylate) microspheres for core–shell structures with controlled electrical conductivity

S. Kim, J. Yoo, G. Yi, Y. Lee, H. R. Choi, J. C. Koo, J. Oh and J. Nam, J. Mater. Chem. C, 2014, 2, 6462
DOI: 10.1039/C4TC00551A

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