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Academic literature on the topic 'Agrégation de colloïdes'
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Dissertations / Theses on the topic "Agrégation de colloïdes"
Ramiandrisoa, Donatien. "Adsorption de protéines sur des colloïdes et agrégation induite." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2014. http://pastel.archives-ouvertes.fr/pastel-00997448.
Full textNadal, François. "Comportement collectif d'une assemblée de colloi͏̈des au voisinage d'une électrode plane sous champ électrique alternatif." Bordeaux 1, 2002. http://www.theses.fr/2002BOR12602.
Full textMehalebi, Soraya. "Agrégation et gélification de la bêta-lactoglobuline : influence des intéractions électrostatiques." Le Mans, 2008. http://cyberdoc.univ-lemans.fr/theses/2008/2008LEMA1005.pdf.
Full textVigolo-Greffier, Brigitte. "Rubans de V2O5 et nanotubes de carbone : de l'étude des suspensions à leur mise en forme." Bordeaux 1, 2002. http://www.theses.fr/2002BOR12564.
Full textOulanti, Otman. "Relaxation au sein de couches homogènes et hétérogènes saturées de la conformation de polyélectrolytes adsorbés à l'interface silice/eau." Université Louis Pasteur (Strasbourg) (1971-2008), 2005. http://www.theses.fr/2005STR13037.
Full textThe author investigated the relaxation characteristics of saturated homogeneous and heterogeneous layers that developed with the modification of the interfacial area of polyelectrolytes adsorbed at the silica/water interface. The investigations were carried out employing the Surface Area Exclusion Chromatography for which one focuses on the adsorption histogram of the polymer on the stationary phase composed of stacked glass fiber filters. The characteristics of linear and branched polymers differing by the chemical nature, the hydrolysis grade and the molecular weight were investigated within homogeneous layer, when the eluent contained a single polymer, or within heterogeneous layers, when the eluent contained a mixture of two polymers. In the first case, the molecular reconformation was determined to depend on the molecular characteristics while in the latter case, the reconformation of a given polymer was determined to be a function the polymer environment. The method allowed to determine the interfacial stability of the adsorbed layer when the layer was equilibrated with a solution of the same polymer (exchange process) or with a solution of a different polymer (displacement process). Finally, the author investigated the effect on the flocculation process of polystyrene latex particles of the reconformation of the polyvinylamine molecules employed as flocculating agent
Prabhu, Achutha. "Agrégation irréversible par patchs de particules colloïdales : une étude par simulation numérique." Phd thesis, Université du Maine, 2012. http://tel.archives-ouvertes.fr/tel-00795636.
Full textNADAL, François. "Comportement collectif d'une assemblée de colloïdes au voisinage d'une électrode plane sous champ électrique alternatif." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2002. http://tel.archives-ouvertes.fr/tel-00004668.
Full textGuéry, Julie. "Emulsions doubles cristallisables : stabilité, encapsulation et relargage." Paris 6, 2006. http://www.theses.fr/2006PA066272.
Full textOberdisse, Julian. "STRUCTURES DANS LES COLLOÏDES ET NANOCOMPOSITES DESTINES AU RENFORCEMENT : ETUDE PAR DIFFUSION DE NEUTRONS AUX PETITS ANGLES." Habilitation à diriger des recherches, Université Montpellier II - Sciences et Techniques du Languedoc, 2005. http://tel.archives-ouvertes.fr/tel-00010688.
Full textMorthomas, Julien. "Intéractions hydrodynamiques entre colloïdess confinés le long d'une paroi." Thesis, Bordeaux 1, 2009. http://www.theses.fr/2009BOR13882/document.
Full textApplying a steady electric field or a constant thermal gradient to a colloidal suspension induces a finite velocity of the dispersed particles. The motion of particles is not due to a net body force like in sedimentation but to interfacial forces acting on the electric double layer at their surface. These forces involve a surface flow, which, in turn, results in a velocity field of the surrounding fluid in 1/r³ in the opposite direction of the particle displacement, with r the distance from the centre of the particle. In this work we consider a somewhat different situation, where the suspension is confined to a semi-infinite half space. The particle, under the action of the applied field, is trapped against the solid interface. Still, the creep flow remains; more precisely the particle continues to pump the fluid in the opposite direction. As a consequence there arises a lateral flow along the solid surface towards the particle. Thus others particles inserting themselves in this flow undergo drag forces and form clusters. Particles aggregation has been observed in Electrophoresis deposition and more recently in Thermophoresis deposition for micron sized polystyrene beads in aqueous solution. The total velocity field takes a form significantly more complicated than in the above mentioned unbounded cases; it must satisfy boundary conditions both at the particle surface and at the confining wall. Using the perturbative method of reflections or Oseen method based on Fourier transform we resolve the Stokes equation and find an analytic solution for the drag flow along the interface in powers of the ratio e=a/h of particle radius and wall distance. The usual solution at the zero order induces poor approximation, when following corrections in e involves better results in agreement with experimental measurements of hydrodynamic pair potential between two particles along a wall