Journal of Materials Science

, Volume 47, Issue 1, pp 412–419 | Cite as

Polymer grafting onto magnetite nanoparticles by “click” reaction

  • J. Amici
  • M. U. Kahveci
  • P. Allia
  • P. Tiberto
  • Y. Yagci
  • M. Sangermano
Article

Abstract

In this article, we described click chemistry methodology for the incorporation of biocompatible polymer chains to Magnetite nanoparticles (NPs). We used a reduction co-precipitation method to obtain Fe3O4 particles in aqueous solution. As a next step, magnetic NPs surface were modified by a silanization reaction with (3-bromopropyl)trimethoxysilane in order to introduce bromine groups on the particles surface which were converted to azide groups by the reaction with sodium azide. Acetylene functionalized poly(ethylene glycol) (a-PEG) and poly(ε-caprolactone) (a-PCL) were synthesized and grafted onto the surface of azide functionalized NPs via “click” reaction to obtain magnetic NPs. Success of the different functionalization processes at different stages was studied using Fourier Transform infrared spectroscopy (FTIR). The morphologies of magnetic NPs were further investigated by transmission electron microscopy (TEM). The magnetization and superparamagnetic behavior of naked Fe3O4 NPs and coated NPs at room temperature was investigated by the measurement of hysteresis curves using a Vibrating Sample Magnetometer (VSM).

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • J. Amici
    • 1
  • M. U. Kahveci
    • 3
  • P. Allia
    • 1
  • P. Tiberto
    • 2
  • Y. Yagci
    • 3
  • M. Sangermano
    • 1
  1. 1.Dipartimento di Scienza dei Materiali e Ingegneria ChimicaPolitecnico di TorinoTurinItaly
  2. 2.INRIMElectromagnetismTurinItaly
  3. 3.Department of ChemistryIstanbul Technical UniversityIstanbulTurkey

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