%0 Journal Article
%T Recent advances in structural and dynamical properties of simplified industrial nanocomposites
%+ Laboratoire Charles Coulomb (L2C)
%+ Matière Molle
%A Genix, Anne-Caroline
%A Baeza, Guilhem P.
%A Oberdisse, Julian
%< avec comité de lecture
%Z L2C:16-200
%@ 0014-3057
%J European Polymer Journal
%I Elsevier
%V 85
%P 605-6019
%8 2016-12-02
%D 2016
%Z 1811.08158
%R 10.1016/j.eurpolymj.2016.08.028
%Z Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft]Journal articles
%X A large body of experimental work on the microstructure and dynamics of simplifiedindustrial nanocomposites made of disordered silica filler in a styrene-butadiene matrixby solid-phase mixing is regrouped and critically discussed in this feature article. Recentresults encompass systems with varying polymer mass, grafting functionality, and fillercontent. They have been obtained by simulation-based structural modelling of nanoparticleaggregate size and mass deduced from small-angle scattering and transmission electronmicroscopy. Our model has been validated by independent swelling experiments.Comparison of structurally-close nanocomposites of widely different chain mass led tothe identification of a unique structure-determining parameter, the grafting density, aswell as to a unified picture of aggregate formation mechanisms in complex nanocompositesduring mixing. In addition, low-field proton NMR allowed for the characterization ofdynamically slowed-down (‘glassy’) polymer layers, which were shown not to dominatethe rheological response, unlike the structural contribution. Finally, broadband dielectricspectroscopy was used in an innovative manner to identify filler percolation – also identifiedby rheology – via dynamics along filler surfaces.
%G English
%2 https://hal.science/hal-01408800/document
%2 https://hal.science/hal-01408800/file/GenixBaezaOberdisse_2016.pdf
%L hal-01408800
%U https://hal.science/hal-01408800
%~ CNRS
%~ L2C
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UM-2015-2021