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Preparation of a Transparent Spherical Polymer Matrix Containing TiO 2 /SiO 2 Hybrid Materials
Author(s) -
Zhang D.H.,
Wu B.Y.
Publication year - 2008
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200700495
Subject(s) - materials science , hybrid material , polymer , copolymer , nanoparticle , titanate , methyl methacrylate , chemical engineering , nanometre , polymer chemistry , composite material , nanotechnology , ceramic , engineering
A transparent spherical polymer matrix containing TiO 2 /SiO 2 hybrid materials is prepared from the copolymerization reaction between TiO 2 /SiO 2 hybrid materials containing vinyl groups and methyl methacrylate (MMA). Transparent TiO 2 /SiO 2 hybrid materials are prepared from the reaction between nucleophilic agents and tetrabutyl titanate (TBT). Three reaction mechanisms leading to the formation of nanometer TiO 2 /SiO 2 hybrid materials, including the single group coordination reaction mechanism (SGCRM), double group chelation reaction mechanism (DGCRM) and bridge coordination reaction mechanism (BCRM) are discussed in detail and confirmed by FT‐IR spectroscopy. The sizes of the TiO 2 /SiO 2 hybrid material nanoparticles are also characterized and calculated by TEM and range from 20–40 nm. The diameter of the particles in the transparent spherical polymer matrix is ca. 100–200 nm and their shape is a regular spherical structure from TEM observations. The transparent spherical polymer matrix containing TiO 2 /SiO 2 hybrid materials could be used as holographic anti‐counterfeiting materials.