title: Refractive index control and Rayleigh scattering properties of transparent TiO2 nanohybrid polymer.
abstract: The surface of TiO2 nanoparticles (NPs) was modified by a coupling agent of 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane to render them highly compatible with organic monomer mixtures avoiding aggregation. Such TiO2 NPs were then chemically attached with a prepolymer. The refractive index of hybrid TiO2 NPs-polymer was increased dramatically in comparison with that of pure polymer, and it can be controlled by adjusting the content of TiO2 NPs. The Rayleigh scattering of hybrid TiO2 NPs-polymer was size-dependent and increased with the increase of the TiO2 NPs content. When Rayleigh scattering of the hybrid material prepared with a milling and centrifuge process was significantly lowered, one can obtain a transparent sample, which is good for optical devices.
authors: Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan. hielim@tagen.tohoku.ac.jp
authors: Hendry I
authors: HI
authors: Elim
authors: Bin
authors: B
authors: Cai
authors: Yu
authors: Y
authors: Kurata
authors: Okihiro
authors: O
authors: Sugihara
authors: Toshikuni
authors: T
authors: Kaino
authors: Tadafumi
authors: T
authors: Adschiri
authors: Ang-Ling
authors: AL
authors: Chu
authors: Nobuyuki
authors: N
authors: Kambe