Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5210707 | Reactive and Functional Polymers | 2010 | 7 Pages |
Abstract
This report describes the novel preparation of silica/polystyrene (SiO2/PS) core-shell composite nanospheres by in situ radical dispersion polymerization in an ionic liquid (IL). Silica nanoparticles were first surface modified by the silane coupling agent methacryloxypropyltrimethoxysilane (MPTMS), which is capable of copolymerizing with styrene and provided a reactive CC bond. Transmission electron microscopy (TEM) revealed core-shell morphology with smooth surfaces. X-ray photoelectron spectroscopy (XPS) analysis demonstrated that almost all of the SiO2 nanoparticles were encapsulated by the polymer. The composite particles were also analyzed by FT-IR spectroscopy and thermogravimetric analysis (TGA). In principle, this simple and environmentally-friendly synthetic procedure can be employed to prepare other inorganic oxide-containing polymer composites.
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Authors
Yuvaraj Haldorai, Won Seok Lyoo, Seok Kyun Noh, Jae-Jin Shim,