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Functional ization of iron oxide magnetic nanoparticles with poly(methyl methacrylate) brushes via grafting-from atom transfer radical polymerization

被引：70
作者：
Garcia, I.
Zafeiropoulos, N. E.
Janke, A.
Tercjak, A.
Eceiza, A.
Stamm, M.
Mondragon, I.
机构：
[1] Univ Basque Country, Mat & Technol Grp, Dept Ingn Quim & Medio Ambiente, Escuela Politecn, Donostia San Sebastian 20018, Spain
[2] Leibniz Inst Polymer Res Dresden, Dept Nanostructured Mat, D-01069 Dresden, Germany
来源：
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2007年 / 45卷 / 05期
关键词：
atomic force microscopy (AFM); atom transfer radical polymerization (ATRP); FT-IR; graft polymerization; magnetic nanoparticles;
D O I：
10.1002/pola.21854
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];
摘要：
A key problem with nanomaterials is the difficulty of controlling the dispersion of nanoparticles inside an organic medium. To overcome this problem, functionalization of the nanoparticle surface is required. Poly(methyl methacrylate) (PMMA) brushes were grown on the surface of iron oxide magnetic nanoparticles with atom transfer radical polymerization and a grafting-from approach. Modified magnetic nanoparticles with a graft density of 0.1 PMMA chains/nm(2) were obtained. Cu(II), used as a deactivating complex, allowed good control of the polymerization along with a narrow polydispersity of the polymer chains. The functionalized magnetic nanoparticles were characterized with Fourier transform infrared spectroscopy, thermogravimetric analysis, gel permeation chromatography, and atomic force microscopy. (c) 2007 Wiley Periodicals, Inc.
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收藏
页码：925 / 932
页数：8
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