HUBERT, Céline; CHOMETTE, Cyril; ROUET, Pierre-Etienne; DÉSERT, Antony; TRÉGUER-DELAPIERRE, Mona; MAJIMEL, Jérôme; MORNET, Stéphane; PERRO, Adeline; DUGUET, Etienne; RAVAINE, Serge

doi:10.1016/j.colsurfa.2016.05.089

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HUBERT, Céline
Centre de Recherche Paul Pascal [CRPP]
Institut des Sciences Moléculaires [ISM]

CHOMETTE, Cyril
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

ROUET, Pierre-Etienne
Centre de Recherche Paul Pascal [CRPP]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

Langue

Article de revue

Ce document a été publié dans

Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2016-05-27, vol. 510, p. pp. 239-244

Elsevier

Résumé en anglais

Multipod-like particles made of a silica core surrounded by polystyrene nodules have been used as precur-sors to synthesize silica particles with 3 or 12 dimples through the selective growth of the dielectric core.Using the polymer nodules as temporary protecting masks, we regioselectively grafted amino groupsonto the unprotected silica surface, as revealed by the adsorption of gold markers. After dissolution ofthe PS nodules, some polymer chains remained grafted onto the silica surface, forming organic bumps atthe bottom of the dimples. These residues were also selectively functionalized, leading to silica particleswith both entropic and enthalpic patches.< Réduire

Mots clés en anglais

Surface modification

Regioselectivity

Patchy particles

Silica

Polystyrene

DOI

http://dx.doi.org/10.1016/j.colsurfa.2016.05.089

Project ANR

Towards Colloidal Molecules and Functional Materials - ANR-07-BLAN-0271
Initiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003

Origine

Importé de hal

Unités de recherche

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026