Facilely dispersible magnetic nanoparticles prepared by a surface-initiated atom transfer radical polymerization

被引：8

作者：

Guo, Zupeng ^{[1
]}

Chen, Yiwang ^{[1
]}

Zhou, Weihua ^{[1
]}

Huang, Zhongfu ^{[1
]}

Hu, Yuehui ^{[2
]}

Wan, Meixiang ^{[3
]}

Bai, Fenglian ^{[3
]}

机构：

[1] Nanchang Univ, Inst Polymers, Nanchang 330031, Peoples R China

[2] Coll Mech & Elect Engn, Jingdezhen Ceram Inst, Jingdezhen 333001, Peoples R China

[3] Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Key Lab Organ Solids, Beijing 100080, Peoples R China

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 30期

基金：

中国国家自然科学基金;

关键词：

Composite materials; Magnetic materials; ATRP;

D O I：

10.1016/j.matlet.2008.08.035

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Facilely dispersible magnetic nanoparticles (Fe3O4) prepared by a surface-initiated atom transfer radical polymerization (ATRP) of poly (ethylene glycol) methyl ether monomethacrylate (PEGMA) are reported. The initiator of 2-bromoisobutyrate (BIB) for ATRP was immobilized onto the surface of Fe3O4 nanoparticles by the reaction between 2-bromoisobutyl bromide (BIBB) and the hydroxyl group on the nanoparticles. The results indicated that the poly(poly(ethylene glycol) monomethactylate) (PPEGMA) was successfully grafted onto the surface of the magnetic nanoparticles. The core-shell nanoparticles with particle size of approximate to 20 nm in water (about 20 mg/mL) are facilely dispersible and can be easily captured by a magnet with magnetic field of 2000 G. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：4542 / 4544

页数：3

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