期刊
MATERIALS LETTERS
卷 63, 期 11, 页码 911-913出版社
ELSEVIER
DOI: 10.1016/j.matlet.2009.01.056
关键词
Nanocomposites; Polymer; Magnesium hydroxide; Core-shell; In-situ emulsion copolymerization
资金
- National Natural Scientific Foundation of China [50573026]
- Program for New Century Excellent Talents in Universities of China [NCET-05-0640]
- Opening Fund of Hubei Key Laboratory of Novel Reactor & Green Chemical Technology [SQ2004-15]
In this paper, vinylated magnesium hydroxide (MH) nanosheets were prepared with 3-(trimethoxysilyl) propyl methacrylate (gamma-MPS) and pristine MH nanosheets, then the MH/polystyrene (PS) hybrid nanoparticles were prepared by ultrasonic wave-assisted in-situ copolymerization of vinylated MH nanosheets and styrene (St). The morphology, thermal stability and chemical structure of the final products were investigated in detail with transmission electron microscopy (TEM), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and Fourier-transform infrared spectra (FTIR). The TEM and FTIR results showed that the uniformly-dispersed core-shell structure of MH/PS nanocomposites with MH-cores and PS-shell was formed. TGA indicated that the covalent interaction between PS and MH improved the thermal stability of PS. A possible formation mechanism of the MH/PS core-shell nanocomposites was also proposed. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.
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