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Polysilsesquioxanes Containing Superparamagnetic Nanoclusters of Cobalt or Nickel

  • V. V. ShevchenkoEmail author
  • M. A. Gumenna
  • V. N. Bliznyuk
  • N. S. Klimenko
  • A. V. Stryutsky
  • J. Wang
  • C. Binek
Article
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A method was developed for the synthesis of ion-coordinated polysilsesquioxanes (OSS-M) by reaction of amphiphilic carboxyl-containing oligosilsesquioxanes (OSS-COOH) with Co and Ni acetates. The OSS-M contain two types of crystalline phases, one of which is formed as a result of interaction of the alkyl chains while the other results from the formation of hydrogen bonds and coordination bonds. The size of the clusters formed by the metal ions, estimated from measurements of their magnetic moments, amounts to 2-3 nm. The magnetic nanoclusters formed by the Co ions in thin polymer films are anisotropic with respect to the plane of the substrate while the Ni ions are isotropic.

Key words

organic–inorganic nanoparticles amphiphilic oligosilsesquioxanes complexation ionic nanoclusters magnetic properties 

Notes

The work was carried out as part of a target program of scientific researches of the National Academy of Sciences of Ukraine “New functional substances and materials of chemical production” (project No. 16-19).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • V. V. Shevchenko
    • 1
    Email author
  • M. A. Gumenna
    • 1
  • V. N. Bliznyuk
    • 2
  • N. S. Klimenko
    • 1
  • A. V. Stryutsky
    • 1
  • J. Wang
    • 3
  • C. Binek
    • 3
  1. 1.Institute of Macromolecular ChemistryNational Academy of Sciences of UkraineKyivUkraine
  2. 2.Department of Materials Science and EngineeringClemson UniversityClemsonUSA
  3. 3.Department of Physics and AstronomyUniversity of Nebraska-LincolnLincolnUSA

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