| abstract |
SUMMARY OF THE INVENTION The present invention provides a method for preparing an erogel having organically modified, permanently hydrophobic surface groups, comprising the steps of: a) preparing a lyogel; Washing the lyogel with an organic solvent, c) surface silylating the gel obtained in step b) and d) drying the surface silylated gel obtained in step c), wherein in step c) A process characterized in that a disiloxane of the formula (I), ie R 3 Si—O—SiR 3 , is used as silylating agent, wherein each residue R is independently of one another identical or different. Represents one hydrogen atom or a linear, branched, cyclic, saturated or unsaturated, aromatic or heteroaromatic non-reactive organic residue, respectively. . |