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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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Roland, Sébastien
Processes and Engineering in Mechanics and Materials
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2023Improvement of the self‐assembly of low χ ABA triblock copolymers with the addition of an ionic liquid
- 2023Improvement of the self‐assembly of low χ ABA triblock copolymers with the addition of an ionic liquid
- 2022Improvement of the self‐assembly of low χ ABA triblock copolymers with the addition of an ionic liquid
- 2021Dual transient networks of polymer and micellar chains: structure and viscoelastic synergy ; Doubles réseaux transitoires de polymères et de micelles: structure et synergie viscoélastiquecitations
- 2021Dual Transient Networks of Polymer and Micellar Chains: Structure and Viscoelastic Synergycitations
- 2021Quantitative Structural Study of Cold-Crystallized PEKKcitations
- 2021Towards a Kinetic Modeling of the Changes in the Electrical Properties of Cable Insulation during Radio-Thermal Ageing in Nuclear Power Plants. Application to Silane-Crosslinked Polyethylenecitations
- 2020Physico-chemical characterization of the blooming of Irganox 1076® antioxidant onto the surface of a silane-crosslinked polyethylenecitations
- 2019Numerical study of the relationship between the spherulitic microstructure and isothermal crystallization kinetics. Part I. 2-Dcitations
- 2016Beware of the Flory parameter to characterize polymer-polymer interactions: A critical reexamination of the experimental literaturecitations
- 2016Evaluation of morphological representative sample sizes for nanolayered polymer blendscitations
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article
Dual Transient Networks of Polymer and Micellar Chains: Structure and Viscoelastic Synergy
Abstract
<jats:p>Dual transient networks were prepared by mixing highly charged long wormlike micelles of surfactants with polysaccharide chains of hydroxypropyl guar above the entanglement concentration for each of the components. The wormlike micelles were composed of two oppositely charged surfactants potassium oleate and n-octyltrimethylammonium bromide with a large excess of anionic surfactant. The system is macroscopically homogeneous over a wide range of polymer and surfactant concentrations, which is attributed to a stabilizing effect of surfactants counterions that try to occupy as much volume as possible in order to gain in translational entropy. At the same time, by small-angle neutron scattering (SANS) combined with ultrasmall-angle neutron scattering (USANS), a microphase separation with the formation of polymer-rich and surfactant-rich domains was detected. Rheological studies in the linear viscoelastic regime revealed a synergistic 180-fold enhancement of viscosity and 65-fold increase of the longest relaxation time in comparison with the individual components. This effect was attributed to the local increase in concentration of both components trying to avoid contact with each other, which makes the micelles longer and increases the number of intermicellar and interpolymer entanglements. The enhanced rheological properties of this novel system based on industrially important polymer hold great potential for applications in personal care products, oil recovery and many other fields.</jats:p>