People | Locations | Statistics |
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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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Genix, Anne-Caroline
Agence Nationale de la Recherche
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (89/89 displayed)
- 2023Influence of the Graft Length on Nanocomposite Structure and Interfacial Dynamicscitations
- 2023Influence of the Graft Length on Nanocomposite Structure and Interfacial Dynamicscitations
- 2023On the absence of structure factors in concentrated colloidal suspensions and nanocompositescitations
- 2023How Tuning Interfaces Impacts the Dynamics and Structure of Polymer Nanocomposites Simultaneouslycitations
- 2022Recent scattering approaches to structure and dynamics of polymer nanocompositescitations
- 2022Interfacial polymer gradients in nanocomposites studied by small-angle scattering
- 2022Microstructure and segmental dynamics of industrially relevant polymer nanocompositescitations
- 2022SANS studies of polymer structure in nanocomposites
- 2022Tuning the Properties of Nanocomposites by Trapping Them in Deep Metastable Statescitations
- 2021Direct Structural Evidence for Interfacial Gradients in Asymmetric Polymer Nanocomposite Blendscitations
- 2021Critical Role of the Interfacial Layer in Associating Polymers with Microphase Separationcitations
- 2021Critical Role of the Interfacial Layer in Associating Polymers with Microphase Separationcitations
- 2021Fishing for polymer and nanoparticles in nanocomposites using SANS, SAXS, and simulations.
- 2021Some Aspects of Nanoparticle Assembly and Polymer Dynamics in Rubber Systems.
- 2021Structure and dynamics of polymer nanocomposites with different interactions
- 2021Turning Rubber into a Glass: Mechanical Reinforcement by Microphase Separationcitations
- 2021Turning Rubber into a Glass: Mechanical Reinforcement by Microphase Separationcitations
- 2021Some Aspects of Nanoparticle Assembly andPolymer Dynamics in Rubber Systems
- 2021Nanoparticle assembly and polymer interfacial gradients in nanocomposites studied by small-angle scattering
- 2020Strong Reduction in Amplitude of the Interfacial Segmental Dynamics in Polymer Nanocompositescitations
- 2020Strong Reduction in Amplitude of the Interfacial Segmental Dynamics in Polymer Nanocompositescitations
- 2020Resolving segmental polymer dynamics in nanocomposites by incoherent neutron spin–echo spectroscopycitations
- 2020Addition of Short Polymer Chains Mechanically Reinforces Glassy Poly(2-vinylpyridine)-Silica Nanoparticle Nanocompositescitations
- 2020Addition of Short Polymer Chains Mechanically Reinforces Glassy Poly(2-vinylpyridine)–Silica Nanoparticle Nanocompositescitations
- 2020Rejuvenating the structure and rheological properties of silica nanocomposites based on natural rubbercitations
- 2020Partition of Coating Agents between Nanoparticle Interfaces and the Polymer in Nanocompositescitations
- 2020Structural identification of percolation of nanoparticlescitations
- 2020Role of Fast Dynamics in Conductivity of Polymerized Ionic Liquidscitations
- 2020Filler structure and interfacial properties in polymer nanocomposites.
- 2019Understanding the Static Interfacial Polymer Layer by Exploring the Dispersion States of Nanocompositescitations
- 2019Understanding the Static Interfacial Polymer Layer by Exploring the Dispersion States of Nanocompositescitations
- 2019Structure of adsorbed layers and of chains in polymer nanocomposites
- 2019The payne effect: primarily polymer-related or filler-related phenomenon?citations
- 2019Structure and dynamics of polymer nanocompositesby X-ray and neutron scattering techniques.
- 2018Enhancing the Mechanical Properties of Glassy Nanocomposites by Tuning Polymer Molecular Weightcitations
- 2018Enhancing the Mechanical Properties of Glassy Nanocomposites by Tuning Polymer Molecular Weightcitations
- 2018Aggregate formation of surface-modified nanoparticles in solvents and polymer nanocomposites
- 2018Nanoparticle self-assembly: from interactions in suspension to polymer nanocompositescitations
- 2018Aggregate Formation of Surface-Modified Nanoparticles in Solvents and Polymer Nanocompositescitations
- 2018Nanoscale reversibility and non-linear effects in polymer nanocomposites under strain cycles
- 2018Aggregate formation of surface-modofoed nanoparticles in solvent and polymer nanocomposites
- 2018Improving mechanical properties in glassy polymer nanocomposites: effect of molecular weight
- 2018Tuning local nanoparticle arrangements and dynamical properties in polymer nanocomposites by grafting of small molecules
- 2017Impact of formulation on multi-scale structure and segmental dynamics in simplified industrial nanocomposites
- 2017Tuning Local Nanoparticle Arrangements in TiO<sub>2</sub>–Polymer Nanocomposites by Grafting of Phosphonic Acidscitations
- 2017Synergistic Effect of Small Molecules on Large-Scale Structure of Simplified Industrial Nanocompositescitations
- 2017Estimation of local density in nanoparticle assemblies by correlation hole analysis
- 2017Tuning Local Nanoparticle Arrangements in TiO2-Polymer Nanocomposites by Grafting of Phosphonic Acidscitations
- 2017Chain structure of polymer nanocomposites using small-angle neutron scattering
- 2017Determination of the local density of polydisperse nanoparticle assembliescitations
- 2017Structure of chains and filler in polymer nanocomposites: impact of small beads and small molecules
- 2017Filler structure and segmental dynamics in polymernanocomposites
- 2017Small-angle scattering analysis of the structure of chains and filler in polymer nanocomposites
- 2016Recent progress in polymer and filler structure in nanocomposites
- 2016Contrast matching gone wrong? Nanocomposites seen by SANS
- 2016Structure of alumina-silica nanoparticles grafted with alkylphosphonic acids in poly(ethylacrylate) nanocompositescitations
- 2016Structure of alumina-silica nanoparticles grafted with alkylphosphonic acids in poly(ethylacrylate) nanocompositescitations
- 2016Tuning the structure of polymer nanocomposites by grafting small molecules or long chains on filler particles
- 2016Contrast-matching gone wrong? A study of polymer conformation in nanocomposites
- 2016Recent advances in structural and dynamical properties of simplified industrial nanocompositescitations
- 2016Impact of formulation on multi-scale structure and dynamics of polymer/silica nanocomposites
- 2016Revealing nanocomposite filler structures by swelling and small-angle X-ray scatteringcitations
- 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
- 2015Surface modification of alumina-coated silica nanoparticles in aqueous sols with phosphonic acids and impact on nanoparticle interactionscitations
- 2015Recent progress in polymer and filler structure in polymer nanocomposites
- 2015Surface modification of alumina-coated silica nanoparticles in aqueous sols with phosphonic acids and impact on nanoparticle interactions.citations
- 2015Structure and dynamics of polymer nanocomposites studied by X-ray and neutron scattering techniquescitations
- 2015Depercolation of aggregates upon polymer grafting in simplified industrial nanocomposites studied with dielectric spectroscopycitations
- 2015Origin of Small-Angle Scattering from Contrast-Matched Nanoparticles: A Study of Chain and Filler Structure in Polymer Nanocompositescitations
- 2015A high-temperature dielectric process as a probe of large-scale silica filler structure in simplified industrial nanocompositescitations
- 2015Multi-scale filler structure and dynamics in simplified industrial nanocomposites combining SAXS and BDS
- 2015Chain signal in nanolatex based nanocomposites
- 2014Mechanisms of aggregate formation in highly-filled simplified industrial nanocomposites
- 2014Mechanism of aggregate formation in simplified industrial silica styrene–butadiene nanocomposites: effect of chain mass and grafting on rheology and structurecitations
- 2014Structure and rheology of model nanocomposites
- 2014Studying Twin Samples Provides Evidence for a Unique Structure-Determining Parameter in Simplifed Industrial Nanocompositescitations
- 2014Tuning Structure and Rheology of Silica–Latex Nanocomposites with the Molecular Weight of Matrix Chains: A Coupled SAXS–TEM–Simulation Approachcitations
- 2013Observation of chain structure in nanocomposites
- 2013Multiscale Filler Structure in Simplified Industrial Nanocomposite Silica/SBR Systems Studied by SAXS and TEMcitations
- 2013Effect of Grafting on Rheology and Structure of a Simplified Industrial Nanocomposite Silica/SBRcitations
- 2013Effect of grafting on rheology and structure of a simplified industrial nanocomposite silica/SBR.citations
- 2013Combined study of structure and dynamics in simplified industrial nanocomposites silica/SBR
- 2013Structure of highly charged simplified industrial nanocomposites
- 2013Structure of highly loaded simplified industrial nanocomposites
- 2013Nanolatex based nanocomposites: control of the filler structure and reinforcement
- 2012Modeling of Intermediate Structures and Chain Conformation in Silica–Latex Nanocomposites Observed by SANS During Annealingcitations
- 20113rd European Workshop on Nanocomposites and Polymer Dynamics (2011)
- 2011Reinforcement and Polymer Mobility in Silica–Latex Nanocomposites with Controlled Aggregationcitations
Places of action
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article
Understanding the Static Interfacial Polymer Layer by Exploring the Dispersion States of Nanocomposites
Abstract
The dynamic and static properties of the interfacial region between polymer and nanoparticles have wide-ranging consequences on performances of nanomaterials. The thickness and density of the static layer are particularly difficult to assess experimentally due to superimposing nanoparticle interactions. Here, we tune the dispersion of silica nanoparticles in nanocomposites by preadsorption of polymer layers in the precursor solutions, and by varying the molecular weight of the matrix chains. Nanocomposite structures ranging from ideal dispersion to repulsive order or various degrees of aggregation are generated and observed by small-angle scattering. Preadsorbed chains are found to promote ideal dispersion, before desorption in the late stages of nanocomposite formation. The microstructure of the interfacial polymer layer is characterized by detailed modeling of X-ray and neutron scattering. Only in ideally well-dispersed systems a static interfacial layer of reduced polymer density over a thickness of ca. 2 nm is evidenced based on the analysis with a form-free density profile optimized using numerical simulations. This interfacial gradient layer is found to be independent of the thickness of the initially adsorbed polymer, but appears to be generated by out-of-equilibrium packing and folding of the preadsorbed layer. The impact of annealing is investigated to study the approach of equilibrium, showing that initially ideally well-dispersed systems adopt a repulsive hard-sphere structure, while the static interfacial layer disappears. This study thus promotes the fundamental understanding of the interplay between effects which are decisive for macroscopic material properties: polymer-mediated interparticle interactions, and particle interfacial effects on the surrounding polymer.