| 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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Duguet, Etienne
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2023Bimetallic copper-based nanowires and the means to create next-generation stable transparent electrodescitations
- 2022Controlling disorder in self-assembled colloidal monolayers via evaporative processescitations
- 2021Versatile template-directed synthesis of gold nanocages with a predefined number of windowscitations
- 2021Dimpled SiO2@γ-Fe2O3 nanocomposites – fabrication and use for arsenic adsorption in aqueous mediumcitations
- 2020Low-temperature silver sintering by colloidal approachcitations
- 2015Charge detection Mass spectrometry for the characterization of Mass and surface area of composite nanoparticlescitations
- 2013Encapsulation of ZnO particles by metal fluorides: Towards an application as transparent insulating coatings for windowscitations
- 2013New Insights into Crystallite Size and Cell Parameters Correlation for ZnO Nanoparticles Obtained from Polyol-Mediated Synthesis.citations
- 2012Synthesis and characterization of biocompatible superparamagnetic nanocomposites
- 2012Spheres Growing on a Sphere: A Model to Predict the Morphology Yields of Colloidal Molecules Obtained through a Heterogeneous Nucleation Routecitations
- 2011Manganite perovskite nanoparticles for self-controlled magnetic fluid hyperthermia: about the suitability of an aqueous combustion synthesis routecitations
- 2009Search a new core materials for magnetic fluid hyperthermia : preliminary chemical and physical issuescitations
- 2007Intercalation polymerization
- 2007Designing organic/inorganic colloids by heterophase polymerizationcitations
- 2006Nucleation of Polystyrene Latex Particles in the Presence of γ-Methacryloxypropyltrimethoxysilane: Functionalized Silica Particlescitations
- 2005Poly(ethyl glycol) surface coated magnetic particlescitations
- 2005Controlled growth of silica shell on Ba0.6Sr0.4TiO3 nanoparticles used as precursors of ferroelectric compositescitations
- 2005Synthesis of colloidal superparamagnetic nanocomposites by grafting poly(e-caprolactone) from the surface of organosilane-modified maghemite nanoparticles.citations
- 2005Organosilane-modified maghemite nanoparticles and their use as co-initiator in the ring-opening polymerization of epsilon-caprolactone.citations
- 2004Synthesis of daisy-shaped and multipod-like silica/polystyrene nanocompositescitations
Places of action
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article
Nucleation of Polystyrene Latex Particles in the Presence of γ-Methacryloxypropyltrimethoxysilane: Functionalized Silica Particles
Abstract
Silica/polystyrene nanocomposite particles with different morphologies were synthesized through emulsion polymerization of styrene in the presence of silica particles previously modified by γ-methacryloxypropyltrimethoxysilane (MPS). Grafting of the silane molecule was performed by direct addition of MPS to the aqueous silica suspension in the presence of an anionic surfactant under basic conditions. The MPS grafting density on the silica surface was determined using the depletion method and plotted against the initial MPS concentration. The influence of the MPS grafting density, the silica particles size and concentration and the nature of the surfactant on the polymerization kinetics and the particles morphology was investigated. When the polymerization was performed in the presence of an anionic surfactant, transmission electron microscopy images showed the formation of polymer spheres around silica for MPS grafting densities lower than typically 1 μmole·m−2 while the conversion versus time curves indicated a strong acceleration effect under such conditions. In contrast, polymerizations performed in the presence of a larger amount of MPS moieties or in the presence of a non ionic emulsifier resulted in the formation of "excentered" core-shell morphologies and lower polymerization rates. The paper identifies the parameters that allow to control particles morphology and polymerization kinetics and describes the mechanism of formation of the nanocomposite colloids.