Graft polymerization synthesis and application of magnetic Fe3O4/polyacrylic acid composite nanoparticles

被引：6

作者：

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

Pan, T. T.

Han, Y. P.

Zhang, S. Z.

Li, H. Z.

Ding, J.

机构：

[1] Soochow Univ, Dept Chem Engn, Suzhou 215123, Peoples R China

[2] Soochow Univ, Key Lab Organ Synth Jiangsu Province, Suzhou 215006, Peoples R China

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

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

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2007年 / 106卷 / 03期

关键词：

Fe3O4; nanoparticles; graft polymerization; surface modification; acrylic acid; magnetic fluid;

D O I：

10.1002/app.25142

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Fe3O4 magnetic nanoparticles were prepared by coprecipitation using NH3 center dot H2O as the precipitating agent, and were characterized by Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), and X-ray powder diffraction (XRD). The compatibility between the Fe3O4 nanoparticles and water were enhanced by grafting acrylic acid onto the nanoparticle surface. FTIR, XRD, thermogravimetry (TG), and differential scanning calorimetry (DSC) were used to characterize the resultant sample. The effects of initiator dosage, monomer concentration, and reaction temperature on the characteristics of surface-modified Fe3O4 nanoparticles were investigated. Moreover, magnetic fluids (MF), prepared by dispersing the PAA grafted Fe3O4 nanoparticles in water, were characterized using UV-vis spectrophotometer, Gouy magnetic balance, and laser particle-size analyzer. The rheological characteristics of magnetic fluid were investigated using capillary and rotating rheometers. The MF was added to prepare PVA thin film to improve mechanical properties. (C) 2007 Wiley Periodicals, Inc.

引用

页码：1439 / 1447

页数：9

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