Microwave-assisted synthesis and characterization of poly(acrylic)/SiO2-TiO2 core-shell nanoparticle hybrid thin films

作者：Chien Wen Chen^*; Yu Yang Yen; Chen Po Kan; Yu Hui Huan

来源：Thin Solid Films, 2011, 519(15): 5274-5279.

DOI：10.1016/j.tsf.2011.04.001

• Acrylic polymer
• Silica
• Titania
• Core-shell nanoparticle
• Hybrid thin film

In this study, poly(acrylic)/SiO2-TiO2 core-shell nanoparticle hybrid thin films were successfully synthesized by microwave-assisted polymerization. The coupling agent 3-(trimethoxysilyl) propyl methacrylate (MSMA) was hydrolyzed with colloidal SiO2-TiO2 core-shell nanoparticles, and then polymerized with two acrylic monomers and initiator to form a precursor solution. The results of this study showed that the spin-coated hybrid films had relatively good surface planarity, high thermal stability, a tunable refractive index (1.525<n<1.870), and excellent optical transparency, in the visible range. The prepared hybrid thin films were applied to develop a three layer antireflective (AR) coating on the microscope slide glass (FEA glass) substrate. Results showed that the reflectance of the AR coating on the FEA glass was less than 0.5% in the visible range, which was lower than that of an FEA glass substrate. Our study demonstrated an alternative approach to the preparation of high refractive index poly(acrylic)/SiO2-TiO2 core-shell nanoparticle hybrid thin films, for potential use in optical applications.

• 出版日期2011-5-31