| 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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Van Duijneveldt, Jeroen S.
University of Bristol
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2019Developing toughened bismaleimide-clay nanocomposites:Comparing the use of platelet and rod-like nanoclayscitations
- 2019Developing toughened bismaleimide-clay nanocompositescitations
- 2018High Stiffness Cellulose Fibers from Low Molecular Weight Microcrystalline Cellulose Solutions Using DMSO as Co-Solvent with Ionic Liquidcitations
- 2017Controlling the Rheology of Montmorillonite Stabilised Oil-in-Water Emulsionscitations
- 2016Fabrication and Characterisation of Polyurethane/Sepiolite Polymer Nanocomposite Foams for Enhanced Energy Absorption
- 2015Adsorption of F127 onto Single-Walled Carbon Nanotubes Characterized Using Small-Angle Neutron Scatteringcitations
- 2013Competition between polymers for adsorption on silica:A solvent relaxation NMR and small-angle neutron scattering studycitations
- 2011Comparing colloidal phase separation induced by linear polymer and by microgel particlescitations
- 2011Phase separation in mixtures of two sizes of silica particles dispersed in DMF on the addition of polystyrenecitations
- 2010The Phase Behavior of Dispersions of Silica Particles in Mixtures of Polystyrene and Dimethylformamidecitations
- 2009Testing the Scaling Behavior of Microemulsion-Polymer Mixturescitations
Places of action
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article
Testing the Scaling Behavior of Microemulsion-Polymer Mixtures
Abstract
The phase behavior and structural properties of "protein limit" mixtures of small (radius 20-30 A) water-in-oil microemulsion droplets (colloids) and large (radius 130-580 angstrom) nonadsorbing polymer chains have been investigated. Accepted theoretical scaling relations for describing correlations have been applied and do not account fully for the observations; solvency effects may account for the deviations. The polymer/colloid size ratio has been varied from around 4 to 19 by using three different molecular weights of polyisoprene. Small-angle neutron scattering (SANS) has been used to determine partial structure factors (PSF) through contrast variation. The structure factors describing colloid-colloid interactions for the three polymers at fixed polymer concentration are shown to exhibit the same scaling behavior as the phase boundaries, provided that samples are sufficiently far from the demixing phase transition. The structure factors show a dramatic increase at low wavevectors on approaching the phase boundary, and behavior in this region does not obey expected scaling relations. By calculating effective polymer Flory-Huggins parameters, the effect of apparent solvent properties on adding microemulsion are shown to be less dramatic for the higher molecular weight polymers. This study extends previous work carried out on microemulsion-polymer mixtures (Langmuir 2008, 24, 3053-3060).