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From Raspberry-like to Dumbbell-like Hybrid Colloids through Surface-assisted Nucleation and Growth of Polystyrene Nodules onto Macromonomer-modified Silica Nanoparticles

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Abstract

Colloidal particles with a controlled morphology combining both organic and inorganic parts were synthesized through a seeded emulsion polymerization process. Silica seed particles (from 50 to 150 nm in diameter) were first surface-modified by the adsorption of an oxyethylene-based macromonomer. Then, emulsion polymerization of styrene was carried out in presence of these particles, the formation of polystyrene nodules being highly favored at the silica surface in such conditions. The ratio between the number of silica seeds and the number of growing polystyrene nodules appeared to be one of the key parameters to control the morphology of the final hybrid nanoparticles. When this ratio is close to 1, original hybrid dumbbell-like nanoparticles were mainly obtained.

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Acknowledgments

The authors are very grateful to Michel Martineau and Elisabeth Sellier (Centre de Ressources En Microscopie Electronique et Microanalyse, Talence, France) for their help in the TEM observations.

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Authors and Affiliations

  1. Institut de Chimie de la Matière Condensée de Bordeaux, CNRS, Université Bordeaux-1, 87 avenue du Docteur Schweitzer, F-33608, Pessac, France

    Etienne Duguet, Adeline Perro & Céline Poncet-Legrand

  2. Centre de Recherche Paul Pascal, CNRS, Université Bordeaux-1, 115 avenue du Docteur Schweitzer, F-33608, Pessac, France

    Stéphane Reculusa, Adeline Perro, Céline Poncet-Legrand & Serge Ravaine

  3. Laboratoire de Chimie et des Procédés de Polymérisation, CPE, CNRS, 43 boulevard du 11 novembre, BP 2077, F-69616, Villeurbanne, France

    Elodie Bourgeat-Lami

  4. Laboratoire des Interactions Moléculaires et Réactivité Chimique et Photochimique, Université Paul Sabatier, CNRS, 118 route de Narbonne, F-31062, Toulouse, France

    Christophe Mingotaud

Authors
  1. Etienne Duguet
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  2. Stéphane Reculusa
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  3. Adeline Perro
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  4. Céline Poncet-Legrand
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  5. Serge Ravaine
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  6. Elodie Bourgeat-Lami
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  7. Christophe Mingotaud
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Duguet, E., Reculusa, S., Perro, A. et al. From Raspberry-like to Dumbbell-like Hybrid Colloids through Surface-assisted Nucleation and Growth of Polystyrene Nodules onto Macromonomer-modified Silica Nanoparticles. MRS Online Proceedings Library 847, 292–301 (2004). https://doi.org/10.1557/PROC-847-EE1.1

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  • DOI: https://doi.org/10.1557/PROC-847-EE1.1

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