Preparation of Porous Magnetic Nanocomposite Materials Using Highly Concentrated Emulsions as Templates

被引：8
|
作者：
Ghosh, G. [2 ,3 ]
Vilchez, A. [2 ]
Esquena, J. [2 ]
Solans, C. [2 ]
Rodriguez-Abreu, C. [1 ,2 ]
机构：
[1] Int Iberian Nanotechnol Lab INL, Avda Cent 100,Edificio Congregados, P-4710229 Braga, Portugal
[2] CSIC, IQAC, E-08034 Barcelona, Spain
[3] UGC AE, CSR, Bombay 400085, Maharashtra, India
来源：
TRENDS IN COLLOID AND INTERFACE SCIENCE XXIV | 2011年 / 138卷
关键词：
Nanocomposites; emulsion polymerization; porous materials; NANOPARTICLES; PARTICLES;
D O I：
10.1007/978-3-642-19038-4_29
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Iron oxide nanoparticles (NPs) with a size of 3 and 10 nm were used to prepare porous hybrid magnetic nanocomposite materials via polymerization in highly concentrated water-in-oil (w/o) emulsions. The NPs were dispersed in a monomer mixture (styrene-divinylbenzene), which was then polymerized to obtain porous solid monoliths with embedded magnetic nanoparticles. The NPs were characterized using x-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results showed that the nanocomposites contain a high pore volume fraction, with pores of size around 1-10 mu m, surrounded by thin polymer walls containing homogeneously distributed nanoparticles. Porous nanocomposites can be attracted to a strong permanent magnet.
引用
收藏
页码：161 / 164
页数：4
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