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Distortion of Chain Conformation and Reduced Entanglement in Polymer–Graphene Oxide Nanocomposites

Weir, M.P.; Johnson, D.W.; Boothroyd, S.C.; Savage, R.C.; Thompson, R.L.; King, S.M.; Rogers, S.E.; Coleman, K.S.; Clarke, N.

Distortion of Chain Conformation and Reduced Entanglement in Polymer–Graphene Oxide Nanocomposites Thumbnail


Authors

M.P. Weir

D.W. Johnson

S.C. Boothroyd

R.C. Savage

S.M. King

S.E. Rogers

N. Clarke



Abstract

We study the conformations of polymer chains in polymer–graphene oxide nanocomposites. We show that the chains have a reduced radius of gyration that is consistent with confinement at a solid interface in the melt, as is expected for well-dispersed, high aspect ratio nanoparticles that are much larger than the polymer coil size. We show that confinement of the polymer chains causes a corresponding reduction in interchain entanglements, and we calculate a contribution to the plateau modulus from the distorted polymer network via a simple scaling argument. Our results are a significant step forward in understanding how two-dimensional nanoparticles affect global material properties at low loadings.

Citation

Weir, M., Johnson, D., Boothroyd, S., Savage, R., Thompson, R., King, S., …Clarke, N. (2016). Distortion of Chain Conformation and Reduced Entanglement in Polymer–Graphene Oxide Nanocomposites. ACS Macro Letters, 5(4), 430-434. https://doi.org/10.1021/acsmacrolett.6b00100

Journal Article Type Article
Acceptance Date Mar 8, 2016
Online Publication Date Mar 9, 2016
Publication Date Mar 9, 2016
Deposit Date Mar 15, 2016
Publicly Available Date Mar 9, 2017
Journal ACS Macro Letters
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 5
Issue 4
Pages 430-434
DOI https://doi.org/10.1021/acsmacrolett.6b00100

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Copyright Statement
ACS AuthorChoice - This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.





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