Synthesis of amphiphilic superparamagnetic ferrite/block copolymer hollow submicrospheres

被引：152

作者：

Li, Xin-Hao ^{[1
]}

Zhang, Dong-Hui ^{[1
]}

Chen, Jie-Sheng ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2006年 / 128卷 / 26期

关键词：

D O I：

10.1021/ja061460g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Self-assembly can be a powerful, but simple, synthetic method for the fabrication and surface modification of nanometer- to micrometer-sized hollow spheres. Here we report a facile route for preparation of submicrometer ferrite hollow spheres which are amphiphilic and superparamagnetic. This unique approach involves the formation of ferrite nanocrystals and the simultaneous self-assembly of nanocrystals and block copolymer PEO-PPO-PEO into hollow spheres. Furthermore, this approach is general for the preparation of a series of ferrite hollow spheres, including Fe3O4, Co1-xFe2+xO4, and Mn1-xFe2+xO4. Unlike conventional hollow spheres, which are either hydrophobic or hydrophilic, the products we obtained exhibit excellent dispersibility in both polar and nonpolar solvents. . Copyright © 2006 American Chemical Society.

引用

页码：8382 / 8383

页数：2

共 25 条

[1]

Bergbreiter DE, 1999, ANGEW CHEM INT EDIT, V38, P2870, DOI 10.1002/(SICI)1521-3773(19991004)38:19<2870::AID-ANIE2870>3.0.CO

[2]

2-6

[3] Multilayered titania, silica, and Laponite nanoparticle coatings on polystyrene colloidal templates and resulting inorganic hollow spheres [J].