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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Banc, Amélie
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2021Impact of the protein composition on the structure and viscoelasticity of polymer-like gluten gelscitations
- 2020Tailoring the viscoelasticity of polymer gels of gluten proteins through solvent qualitycitations
- 2019Phase separation dynamics of gluten protein mixturescitations
- 2018Nanoscale reversibility and non-linear effects in polymer nanocomposites under strain cycles
- 2017Chain structure of polymer nanocomposites using small-angle neutron scattering
- 2017Structure of chains and filler in polymer nanocomposites: impact of small beads and small molecules
- 2016Contrast matching gone wrong? Nanocomposites seen by SANS
- 2016Spontaneous gelation of wheat gluten proteins in a food grade solventcitations
- 2016Contrast-matching gone wrong? A study of polymer conformation in nanocomposites
- 2015Structure analysis by small-angle scattering of polymer nanocomposites: from model to industrial systems
- 2015Contrast-matching gone wrong? A study of polymer conformation in nanocomposites
- 2015Recent progress in polymer and filler structure in polymer nanocomposites
- 2015Origin of Small-Angle Scattering from Contrast-Matched Nanoparticles: A Study of Chain and Filler Structure in Polymer Nanocompositescitations
- 2015Chain signal in nanolatex based nanocomposites
- 2014Structure and rheology of model nanocomposites
- 2014Tuning Structure and Rheology of Silica–Latex Nanocomposites with the Molecular Weight of Matrix Chains: A Coupled SAXS–TEM–Simulation Approachcitations
- 2013Nanolatex based nanocomposites: control of the filler structure and reinforcement
- 2013Structuration and mechanical properties of gels made from gluten proteins
- 2011Reinforcement and Polymer Mobility in Silica–Latex Nanocomposites with Controlled Aggregationcitations
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article
Tuning Structure and Rheology of Silica–Latex Nanocomposites with the Molecular Weight of Matrix Chains: A Coupled SAXS–TEM–Simulation Approach
Abstract
The structure of silica-latex nanocomposites of three matrix chain masses (20, 50, and 160 kg/mol of poly(ethyl methacrylate)) are studied using a SAXS/TEM approach, coupled via Monte Carlo simulations of scattering of fully polydisperse silica nanoparticle aggregates. At low silica concentrations (1 vol. %), the impact of the matrix chain mass on the structure is quantified in terms of the aggregation number distribution function, highest mass leading to individual dispersion, whereas the lower masses favor the formation of small aggregates. Both simulations for SAXS and TEM give compatible aggregate compacities around 10 vol. %, indicating that the construction algorithm for aggregates is realistic. Our results on structure are rationalized in terms of the critical collision time between nanoparticles due to diffusion in viscous matrices. At higher concentrations, aggregates overlap and form a percolated network, with a smaller and lighter mesh in the presence of high mass polymers. The linear rheology is investigated with oscillatory shear experiments. It shows a feature related to the silica structure at low frequencies, the amplitude of which can be described by two power laws separated by the percolation threshold of aggregates.