Surface modification of γ-Fe2O3 nanoparticles by grafting from poly-(hydroxyethylmethacrylate) and poly-(methacrylic acid): Qualitative and quantitative analysis of the polymeric coating
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- 作者：H. Bastia ; b ; L. Ben Taharb ; L.S. Smirib ; F. Herbsta ; S. Nowaka ; C. Mangeneya ; S. Ammara ; ammarmer@univ-paris-diderot.fr" class="auth_mail" title="E-mail the corresponding author
- 关键词：Iron oxide nanoparticles ; Nanohybrids ; Polymer coating ; ATRP ; XPS spectroscopy ; Magnetometry
- 刊名：Colloids and Surfaces A: Physicochemical and Engineering Aspects
- 出版年：2016
- 出版时间：5 February 2016
- 年：2016
- 卷：490
- 期：Complete
- 页码：222-231
- 全文大小：2365 K
文摘
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Poly(hydroxyethylmethacrylate) and poly(methacrylic acid) were grafted from Fe2O3 NPs.
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Relatively thin and dense polymer brushes were grown on NP surface by ATR polymerization.
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Polymer NP’s coverage was quantified by coupling TEM, XRF, XPS and TG analyses.
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The hydrophilic polymer brush surface density is measured as about 0.1–0.4 nm−2.
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The reduced size and high magnetization of the nanohybrids make them valuable for medical uses.