| 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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Ravaine, Serge
University of Bordeaux
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024Investigation of the photochromism of WO3, TiO2, and composite WO3-TiO2 nanoparticlescitations
- 2021Versatile template-directed synthesis of gold nanocages with a predefined number of windowscitations
- 2020Electrodeposited Negative Index Metamaterials with Visible and Near Infrared Responsecitations
- 2018Nanostructured gold films exhibiting almost complete absorption of light at visible wavelengthscitations
- 2015Morphological Design of Gold Nanopillar Arrays and Their Optical Propertiescitations
- 2015Charge detection Mass spectrometry for the characterization of Mass and surface area of composite nanoparticlescitations
- 2015Molecularly imprinted hydrogels from colloidal crystals for the detection of progesteronecitations
- 2012Engineering of Complex Macroporous Materials Through Controlled Electrodeposition in Colloidal Superstructurescitations
- 2012Spheres Growing on a Sphere: A Model to Predict the Morphology Yields of Colloidal Molecules Obtained through a Heterogeneous Nucleation Routecitations
- 2011Photonic crystal pH sensor containing a planar defect for fast and enhanced responsecitations
- 2011Photonic crystal pH sensor containing a planar defect for fast and enhanced responsecitations
- 2011Introduction of a planar defect in a molecularly imprinted photonic crystal sensor for the detection of bisphenol Acitations
- 2011Inhibition and exaltation of emission in layer-controlled colloidal photonic architecturescitations
- 2011Design of Catalytically Active Cylindrical and Macroporous Gold Microelectrodescitations
- 2010CoFe2O4-TiO2 and CoFe2O4-ZnO Thin Film Nanostructures Elaborated from Colloidal Chemistry and Atomic Layer Depositioncitations
- 2010Fine tuning of emission through the engineering of colloidal crystalscitations
- 2009Effects of the Position of a Chemically or Size-Induced Planar Defect on the Optical Properties of Colloidal Crystalscitations
- 2009Building planar defects into colloidal crystals using particles of different chemical naturecitations
- 2007Designing organic/inorganic colloids by heterophase polymerizationcitations
- 2006Nucleation of Polystyrene Latex Particles in the Presence of γ-Methacryloxypropyltrimethoxysilane: Functionalized Silica Particlescitations
- 2006Colloidal Crystals as Templates for Macroporous Carbon Electrodes of Controlled Thicknesscitations
- 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.