Rayleigh scattering study of titanium dioxide nanohybrid polymer

摘要

Rayleigh scattering study of transparent TiO_2 nanohybrid polymer has been experimentally carried out. To decrease the Rayleigh scattering of this nanohybrid material, we modified the surface of the TiO_2 nanoparticles (NPs) with a coupling agent to render them highly compatible with organic monomer mixtures avoiding aggregation, and such TiO_2 NPs were then chemically attached with a pre-polymer. The refractive index of hybrid TiO_2 NPs-polymer can be controlled by adjusting the content of TiO_2 NPs. The Rayleigh scattering of hybrid TiO_2 NPs-polymer was size-dependent and increased with the increase of the TiO_2 NPs content. By preparing the hybrid material with milling and centrifuge process, a transparent sample with a very low Rayleigh scattering can be obtained. This newly developed hybrid material is good for optical devices.