Highly Ordered Functional Organosilicas by Template-Directed Hydrolysis-Polycondensation of Chiral Camphorsulfonamide Precursors

Benoît Gadenne (1) , Peter Hesemann (1) , Vivek Polshettiwar (1) , Joël J.E. Moreau (1)

1 UMR 5076 - Hétérochimie Moléculaire et Macromoléculaire

Trialkoxysilylated camphorsulfonamides have been used for the synthesis of functional organosilicas in a template-directed hydrolysis-polycondensation with tetraethylorthosilicate (TEOS). The sol-gel transformation leading to the formation of highly ordered materials indicates that trialkoxysilylated camphorsulfonamides allow the synthesis of functional organosilicas with high structural regularity. This behaviour arises from the affinity of the chiral precursors towards the lyotropic phase of the ionic surfactants in the aqueous hydrolysis-polycondensation mixture.

Mots clés: Mesoporous materials; Organic-inorganic hybrid composites; Sol-gel processes; Supported catalysts; Template synthesis

Domaines: Matériaux; Chimie organique

Benoît Gadenne, Peter Hesemann, Vivek Polshettiwar, Joël J.E. Moreau. Highly Ordered Functional Organosilicas by Template-Directed Hydrolysis-Polycondensation of Chiral Camphorsulfonamide Precursors. European Journal of Inorganic Chemistry, 2006, 18, pp.3697-3702. ⟨10.1002/ejic.200600287⟩. ⟨hal-00178054⟩