Materiais híbridos à base de sílica obtidos pelo método sol-gel Silica based hybrid materials obtained by the sol-gel method

Abstract

This review deals with silica based hybrid materials obtained by the sol-gel method. It involves concepts, classifications and important definitions regarding the sol-gel method that allows obtaining materials with organic and inorganic components dispersed in a molecular or nanometric level. We discuss the properties and characteristics of hybrid materials related to experimental synthesis conditions. We devote a special attention to the nanostructured materials, where the self-organization is imposed by the organic component. Finally, we present some important applications of these materials based on their specific properties.

Keywords

• organic-inorganic materials
• silsesquioxanes
• silica based hybrid xerogels