Method for the preparation of microparticles comprising the steps of: A) Preparation of a solution of a surfactant in a polar solvent B) Addition of a meltable precursor of a polysiloxane-glass hybrid for the preparation of a mixture of meltable precursor and solution of the surfactant C) Heating the mixture above the melting temperature of the meltable precursor for the preparation of a microemulsion of droplets of the meltable precursor, the size of the droplets being adjusted by stirring and/or ultrasound D) Addition of a catalyst to initiate a cross-linking reaction on the surface of the droplets for the preparation of microparticles, wherein the meltable precursor of the polysiloxane-glass hybrid is selected from the group consisting of one of the compositions, and a mixture thereof: a polymeric material prepared by condensation reactions of a trialkoxysilane monomer unit and/or a dialkoxysilane monomer unit, wherein the trialkoxysilane monomer unit has the structure and the dialkoxysilane monomer unit has the structure wherein the residues R1 and R2 in the trialkoxysilane monomer unit of structure are independently selected from the group consisting of Cl-C24-alkyl, C3-C24-cycloalkyl, C2-C24-alkyne, C7-C24-cycloalkyne, C2-C24-alkenyl, Cl-C24-alkoxy, C3-C24-cycloalkoxy, C6-C14-aryl and C6-C14-aryloxy, and wherein the residues R1, R2 and R3 in the dialkoxysilane monomer unit of structure are independently selected from the group consisting of Cl-C24-alkyl, C3-C24-cycloalkyl, C2-C24-alkyne, C7-C24-cycloalkyne, C2-C24-alkenyl, Cl-C24-alkoxy, C3-C24-cycloalkoxy, C6-C14-aryl, C6-C14-aryloxy, wherein preferably R 1 for the respective trialkoxysilane or dialkoxysilane monomer unit is independently selected from methyl or ethyl, and wherein preferably R 2, R 3 for the respective trialkoxysilane or dialkoxysilane monomer unit are independently selected from methyl or phenyl; a material comprising a three-dimensional network of partially cross-linked monomer units and an alkoxy-terminated oligo- or polysiloxane, said monomer units comprising at least one trialkoxysilane and at least one dialkoxysilane, said material preferably having the general structural formula wherein R 1, R 2, R 3 and R 4 are independently selected from aryl, alkyl, alkenyl, allyl, substituted aryl, substituted alkenyl, substituted alkyl and vinyl, preferably from phenyl and methyl, wherein u+v+w is the number of Si atoms employed and u, v and w are independently selected from the range 1 to 20000, wherein the groups indexed by u, v and w are statistically distributed in the general structural formula. A) Preparation of a solution of a surfactant in a polar solvent B) Addition of a meltable precursor of a polysiloxane-glass hybrid for the preparation of a mixture of meltable precursor and solution of the surfactant C) Heating the mixture above the melting temperature of the meltable precursor for the preparation of a microemulsion of droplets of the meltable precursor, the size of the droplets being adjusted by stirring and/or ultrasound D) Addition of a catalyst to initiate a cross-linking reaction on the surface of the droplets for the preparation of microparticles, a polymeric material prepared by condensation reactions of a trialkoxysilane monomer unit and/or a dialkoxysilane monomer unit, wherein the trialkoxysilane monomer unit has the structure and the dialkoxysilane monomer unit has the structure wherein the residues R1 and R2 in the trialkoxysilane monomer unit of structure are independently selected from the group consisting of Cl-C24-alkyl, C3-C24-cycloalkyl, C2-C24-alkyne, C7-C24-cycloalkyne, C2-C24-alkenyl, Cl-C24-alkoxy, C3-C24-cycloalkoxy, C6-C14-aryl and C6-C14-aryloxy, and wherein the residues R1, R2 and R3 in the dialkoxysilane monomer unit of structure are independently selected from the group consisting of Cl-C24-alkyl, C3-C24-cycloalkyl, C2-C24-alkyne, C7-C24-cycloalkyne, C2-C24-alkenyl, Cl-C24-alkoxy, C3-C24-cycloalkoxy, C6-C14-aryl, C6-C14-aryloxy, wherein preferably R 1 for the respective trialkoxysilane or dialkoxysilane monomer unit is independently selected from methyl or ethyl, and wherein preferably R 2, R 3 for the respective trialkoxysilane or dialkoxysilane monomer unit are independently selected from methyl or phenyl; a material comprising a three-dimensional network of partially cross-linked monomer units and an alkoxy-terminated oligo- or polysiloxane, said monomer units comprising at least one trialkoxysilane and at least one dialkoxysilane, said material preferably having the general structural formula wherein R 1, R 2, R 3 and R 4 are independently selected from aryl, alkyl, alkenyl, allyl, substituted aryl, substituted alkenyl, substituted alkyl and vinyl, preferably from phenyl and methyl, wherein u+v+w is the number of Si atoms employed and u, v and w are independently selected from the range 1 to 20000, wherein the groups indexed by u, v and w are statistically distributed in the general structural formula.