Synthesis of poly (MPMS-SSO) organic/inorganic hybrid aerogel by ultra-violet cure

A procedure of synthesis of organic/inorganic hybrid wetgels derived from methacryloxypropyltrimethoxysilane based silsesquioxane(MPMS-SSO) by ultra-violet ray(UV) cure was demonstrated. Hybrid aerogels were obtained through CO2 supercritical fluid drying process. The as-synthesized aerogels were characterized by field-emission scanning electron microscopy(SEM), high resolution transmission electron microscopy(TEM), Brunauer-EmmettTeler(BET). The field-emission SEM micrograph shows that, the aerogels are made up of 3-D pearlnecklace like tangling networks and the diameters of the backbone particles are of 20~30 nm. The high resolution TEM micrograph indicates that there are some holes with diameters about 5~10 nm in backbone. The BET results reveal that the aerogel specific surface are