Superparamagnetic composite colloids with anisotropic structures

被引：218

作者：

Ge, Jianping ^{[1
]}

Hu, Yongxing ^{[1
]}

Zhang, Tierui ^{[1
]}

Yin, Yadong ^{[1
]}

机构：

[1] Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2007年 / 129卷 / 29期

关键词：

D O I：

10.1021/ja0736461

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a unified set of emulsion polymerization processes for the synthesis of a series of spherical and nonspherical magnetite-polystyrene (Fe3O4-PS) composite colloids with the superparamagnetic cores concentrically or eccentrically positioned inside polystyrene shells. The interfacial tension between the inorganic core and monomer-swollen polymer shell and the effect of swelling and phase separation have been employed to tune the morphology and structure of the composite colloids. The uniform size, anisotropic structure/shape, and the additional magnetic control make these colloidal particles ideal building blocks for the fabrication of novel functional devices and materials.

引用

页码：8974 / +

页数：3

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