Preparation and characterization of Fe3O4/polystyrene composite particles via inverse emulsion polymerization

被引：81

作者：

Hong, R. Y. ^{[1
,2
,3
]}

Feng, B. ^{[1
,2
]}

Liu, G. ^{[1
,2
]}

Wang, S. ^{[4
]}

Li, H. Z. ^{[3
]}

Ding, J. M. ^{[5
]}

Zheng, Y. ^{[6
]}

Wei, D. G. ^{[7
]}

机构：

[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China

[2] Soochow Univ, Key Lab Organ Synth Jiangsu Prov, Suzhou 215123, Peoples R China

[3] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase React, Beijing 100080, Peoples R China

[4] Soochow Univ, SIP, Dept Pharmaceut Sci, Suzhou 215123, Peoples R China

[5] IBM Corp, HYDA 050 3 C202, Rochester, MN 55901 USA

[6] Univ New Brunswick, Dept Chem Engn, Fredericton, NB E3B 5A3, Canada

[7] Harvard Univ, Ctr Nanoscale Syst, Sch Engn & Appl Sci, Cambridge, MA 02139 USA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 476卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Nanostructured materials; Chemical synthesis; Magnetization; Transmission electron microscopy TEM; IRON-OXIDE NANOPARTICLES; COATED MAGNETITE NANOPARTICLES; MINIEMULSION POLYMERIZATION; SUSPENSION POLYMERIZATION; MICROSPHERES; STYRENE; FLUIDS; ENCAPSULATION; LATEXES; MATRIX;

D O I：

10.1016/j.jallcom.2008.09.060

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

Superparamagnetic magnetite/polystyrene (PS) composite particles were prepared by inverse emulsion polymerization with water-based ferrofluid as dispersing phase and organic solvent and styrene (St) as continuous phase. The resultant brownish Fe3O4/PS emulsion showed magnetic behavior in an applied magnetic field. The obtained magnetic Fe3O4/PS microspheres were characterized by Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray powder diffraction (XRD), and thermogravimetry (TG). The magnetic Fe3O4/PS microspheres with a diameter of 200 nm were observed. The results showed that magnetite particles were well encapsulated in PS and the composite particles have high magnetite contents, which were more than 15%. In addition, the influences of magnetic field intensity on the theological properties of ferrofluids were investigated using a rotating rheometer. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：612 / 618

页数：7

共 32 条

[1]

Preparation of magnetic latexes using styrene monomer [J].