Distortions in polymer conformation at the filler interface: polymer-graphene oxide nanocomposites
Graphene and related materials have extraordinary physical properties. By incorporating these two-dimensional materials into polymer composites, such properties may be married with the processability and properties of the host polymers. We currently concentrate on graphene oxide (GO)/poly(methyl methacrylate) (PMMA) nanocomposites due to the chemical compatability between the components. The interaction between polymer and filler in the interfacial region is crucial in the performance of the nanocomposite. This experiment aims to investigate the conformations of the polymer chains near to the filler interface. Our recent SANS measurements have shown that the Rg of PMMA in PMMA/GO exhibits a minimum in Rg near to the percolation threshold. This experiment proposes to the study the Rg of PMMA as a function of molecular weight and GO concentration, in order to understand the role of molecular weight and to test simple models of interfacial interactions in nanocomposites.
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Michael P. Weir; Stephen C Boothroyd; CLARKE Nigel; JOHNSON David; LINDNER Peter and Richard L Thompson. (2015). Distortions in polymer conformation at the filler interface: polymer-graphene oxide nanocomposites. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-12-372
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