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Stabilization and Controlled Association of Inorganic Nanoparticles using Block Copolymers

K. Yokota·M. Morvan·J. -F. Berret·J. Oberdisse
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Abstract

We report on the structural properties of mixed aggregates made from rare-earth inorganic nanoparticles (radius 20 Angstroms) and polyelectrolyte-neutral block copolymers in aqueous solutions. Using scattering experiments and Monte Carlo simulations, we show that these mixed aggregates have a hierarchical core-shell microstructure. The core is made of densely packed nanoparticles and it is surrounded by a corona of neutral chains. This microstructure results from a process of controlled association and confers to the hybrid aggregates a remarkable colloidal stability.

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K. Yokota, M. Morvan, J. -F. Berret, J. Oberdisse. 2004-11-26. Stabilization and Controlled Association of Inorganic Nanoparticles using Block Copolymers. https://doi.org/10.1209/epl%2Fi2004-10338-7

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