Interplay between polymer chain conformation and nanoparticle assembly in model industrial silica/rubber nanocomposites

Faraday Discussions
Adrien BoutyJacques Jestin

Abstract

The question of the influence of nanoparticles (NPs) on chain dimensions in polymer nanocomposites (PNCs) has been treated mainly through the fundamental way using theoretical or simulation tools and experiments on well-defined model PNCs. Here we present the first experimental study on the influence of NPs on the polymer chain conformation for PNCs designed to be as close as possible to industrial systems employed in the tire industry. PNCs are silica nanoparticles dispersed in a styrene-butadiene-rubber (SBR) matrix whose NP dispersion can be managed by NP loading with interfacial coatings or coupling additives usually employed in the manufacturing mixing process. We associated specific chain (d) labeling, and the so-called zero average contrast (ZAC) method, with SANS, in situ SANS and SAXS/TEM experiments to extract the polymer chain scattering signal at rest for non-cross linked and under stretching for cross-linked PNCs. NP loading, individual clusters or connected networks, as well as the influence of the type, the quantity of interfacial agent and the influence of the elongation rate have been evaluated on the chain conformation and on its related deformation. We clearly distinguish the situations where the silica is pe...Continue Reading

References

Mar 25, 2006·Science·Michael E MackayR S Krishnan
May 16, 2007·Physical Review Letters·Sudeepto SenKenneth S Schweizer
Mar 21, 2008·Physical Review Letters·Anish TutejaMichael E Mackay
Mar 24, 2009·Nature Materials·Pinar AkcoraJack F Douglas
Apr 2, 2009·The Journal of Chemical Physics·Bong June SungArun Yethiraj
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May 28, 2013·Physical Review Letters·M K CrawfordB Hammouda
Apr 9, 2014·Advanced Materials·Nicolas JouaultSanat K Kumar

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Citations

Apr 17, 2019·Soft Matter·Françoise Ehrburger-DolleMark Sutton
Jul 3, 2018·Archives of Computational Methods in Engineering : State of the Art Reviews·Georgios G Vogiatzis, Doros N Theodorou

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