Regioselective Coating of Tetrapod-like Clusters with Silica - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Molecular Crystals and Liquid Crystals Année : 2014

Regioselective Coating of Tetrapod-like Clusters with Silica

Résumé

We describe an easy procedure to regioselectively coat binary tetrapod-like silica/ polystyrene clusters with silica. First we show that the addition of tetraethoxysilane into a basic hydroalcoholic suspension of binary tetrapods induces the preferential growth of their silica core, which conforms to the shape of the polystyrene nodules while growing. On the contrary, we show that the formation of a continuous silica shell around the clusters is promoted if silanol groups have been incorporated at the surface of the polystyrene nodules before the addition of tetraethoxysilane. The thickness and the roughness of the silica coating can be tuned by varying several experimental parameters.
Fichier non déposé

Dates et versions

hal-01096739 , version 1 (18-12-2014)

Identifiants

Citer

Anthony Désert, Céline Hubert, Antoine Thill, Olivier Spalla, Jean-Christophe Taveau, et al.. Regioselective Coating of Tetrapod-like Clusters with Silica. Molecular Crystals and Liquid Crystals, 2014, 604 (1), pp. 27-32. ⟨10.1080/15421406.2014.967651⟩. ⟨hal-01096739⟩
119 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More