MINGOTAUD, Anne-Françoise; RECULUSA, Stéphane; MINGOTAUD, Christophe; KELLER, Patrick; SYKES, C.; DUGUET, Etienne; RAVAINE, Serge

doi:10.1039/b301653f

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MINGOTAUD, Anne-Françoise
Interactions moléculaires et réactivité chimique et photochimique [IMRCP]

RECULUSA, Stéphane
Centre de recherches Paul Pascal [CRPP]

MINGOTAUD, Christophe
Interactions moléculaires et réactivité chimique et photochimique [IMRCP]

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Journal of Materials Chemistry. 2003, vol. 13, n° 8, p. 1920-1925

Royal Society of Chemistry

Résumé en anglais

The grafting and catalytic activity of a metathesis catalyst on well defined silica nanoparticles is described. The aim of this was to test the catalysis properties of a ligand-linked catalyst in ring-opening metathesis polymerization and also the possibility to obtain controlled hybrid materials. This was carried out by reaction of a synthesized hydroxy functionalized phosphine Cy2P(CH2)10OH with Cl2Ru(PPh3)2(CH–Ph), leading to a metathesis catalyst bearing a hydroxy group at the end of a ligand. This group was reacted with well defined silica nanoparticles with a diameter of 200 nm, that had acyl chloride functions at their surface. The grafting density was calculated from thermogravimetry experiments and found to be around 7 µmol m–2. The activity of the catalyst was tested for the ring-opening polymerization of norbornene...< Réduire

Mots clés en anglais

Polymerization

Catalysts

Silica

Nanoparticles

Core-shell

Hydroxydecylphosphine

Ruthenium

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Ring-opening metathesis polymerization on well defined silica nanoparticles leading to hybrid core–shell particles

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