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Properties of magnetic poly(glycidyl methacrylate) and poly(N-isopropylacrylamide) microspheres

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Abstract

Iron oxide colloids were prepared by coprecipitation of Fe(II) and Fe(III) salts in alkaline media and stabilized by perchloric acid, oleic acid, or poly(acrylic acid). In an attempt to obtain magnetic polymer microspheres differing in size, dispersion polymerization of glycidyl methacrylate (GMA) in ethanol containing HClO4-stabilized magnetite, dispersion copolymerization of GMA and 2-hydroxyethyl methacrylate (HEMA) in toluene/2-methylpropan-1-ol mixture in the presence of oleic acid-coated magnetite, and inverse suspension copolymerization of N-isopropylacrylamide (NIPAAm) and N,N′-methylenebisacrylamide (MBAAm) in cyclohexane in the presence of poly(acrylic acid)-coated maghemite were compared. The microspheres were characterized by morphology, size, polydispersity, and some magnetic properties.

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Acknowledgements

Financial support of the Grant Agency of AS CR (grant KAN200200651) and the Academy of Sciences of the Czech Republic (grant 1QS100100553) is gratefully acknowledged. The authors thank Mrs. J. Hromádková of the Institute for electron microscopy measurements.

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Authors and Affiliations

  1. Institute of Macromolecular Chemistry AS CR, v. v. i., Heyrovského nám. 2, 162 06, Praha 6, Czech Republic

    Daniel Horák & Hana Macková

  2. Institute of Physics AS CR, v. v. i., Cukrovarnická 10, 162 53, Praha 6, Czech Republic

    Emil Pollert

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  1. Daniel Horák
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Correspondence to Daniel Horák.

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Horák, D., Pollert, E. & Macková, H. Properties of magnetic poly(glycidyl methacrylate) and poly(N-isopropylacrylamide) microspheres. J Mater Sci 43, 5845–5850 (2008). https://doi.org/10.1007/s10853-008-2836-2

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  • DOI: https://doi.org/10.1007/s10853-008-2836-2

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