Preparation of SiO2/PMMA organic-inorganic hybrid membrane via microemulsion situ polymerization technology

SiO2 nanoparticles was synthesized by F127/MMA/(NH3+H2O)/TEOS inverse microemulsion, the formation and morphology of nanoparticles were analyzed by Ultraviolet-visible spectrum and transmission electron microscopy, and scanning electron microscope. The results showed that SiO2 nanoparticles were spherical structure and its average particle size was about 25 nanometers. The number of SiO2 nanoparticles in the microemulsion and hybrid membrane was increased slightly with the increase of TEOS content. However, agglomeration of SiO2 nanoparticles appeared in the hybrid membranes at high TEOS content.