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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemical engineering
Functionalized graphene sheets for polymer nanocomposites
Nature Nanotechnology, Volume 3, No. 6, Year 2008
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Description
Polymer-based composites were heralded in the 1960s as a new paradigm for materials. By dispersing strong, highly stiff fibres in a polymer matrix, high-performance lightweight composites could be developed and tailored to individual applications. Today we stand at a similar threshold in the realm of polymer nanocomposites with the promise of strong, durable, multifunctional materials with low nanofiller content. However, the cost of nanoparticles, their availability and the challenges that remain to achieve good dispersion pose significant obstacles to these goals. Here, we report the creation of polymer nanocomposites with functionalized graphene sheets, which overcome these obstacles and provide superb polymer-particle interactions. An unprecedented shift in glass transition temperature of over 40°C is obtained for poly(acrylonitrile) at 1 wt% functionalized graphene sheet, and with only 0.05 wt% functionalized graphene sheet in poly(methyl methacrylate) there is an improvement of nearly 30°C. Modulus, ultimate strength and thermal stability follow a similar trend, with values for functionalized graphene sheet- poly(methyl methacrylate) rivaling those for single-walled carbon nanotube-poly(methyl methacrylate) composites. © 2008 Nature Publishing Group.
Authors & Co-Authors
Ramanathan, T.
United States, Evanston
Northwestern University
Abdala, Ahmed A.
United States, Princeton
Princeton University
United Arab Emirates, Abu Dhabi
Khalifa University of Science and Technology
Stankovich, S.
United States, Evanston
Northwestern University
Dikin, D. A.
United States, Evanston
Northwestern University
Herrera-Alonso, Margarita
United States, Princeton
Princeton University
Piner, R. D.
United States, Evanston
Northwestern University
United States, Austin
The University of Texas at Austin
Adamson, Douglas H.
United States, Princeton
Princeton University
Schniepp, Hannes C.
United States, Princeton
Princeton University
Chen, X.
United States, Evanston
Northwestern University
Ruoff, Rodney S.
United States, Evanston
Northwestern University
United States, Austin
The University of Texas at Austin
Nguyen, S. T.
United States, Evanston
Northwestern University
Aksay, Ilhan A.
United States, Princeton
Princeton University
Prud'Homme, Robert K.
United States, Princeton
Princeton University
Brinson, L. C.
United States, Evanston
Northwestern University
Statistics
Citations: 3,167
Authors: 14
Affiliations: 4
Identifiers
Doi:
10.1038/nnano.2008.96
ISSN:
17483387
e-ISSN:
17483395
Research Areas
Environmental