摘要:
A process for preparing microcapsules having a core-shell structure or interconnected porous microsphere matrix, and wherein said shell or matrix comprises at least one metal oxide and/or inorganic polymer, the microcapsules being abtained by a sol-gel process which comprises: preparing a first solution being a water-in-oil emulsion adding to said emulsion a second acidic aqueous pre-hydrolyzed metal precursor solution