Polymer grafting onto magnetite nanoparticles by "click" reaction

J. Amici, M. U. Kahveci, P. Allia, P. Tiberto, Y. Yagci, M. Sangermano*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

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 Fe 3O 4 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 Fe 3O 4 NPs and coated NPs at room temperature was investigated by the measurement of hysteresis curves using a Vibrating Sample Magnetometer (VSM).

Original languageEnglish
Pages (from-to)412-419
Number of pages8
JournalJournal of Materials Science
Volume47
Issue number1
DOIs
Publication statusPublished - Jan 2012

Fingerprint

Dive into the research topics of 'Polymer grafting onto magnetite nanoparticles by "click" reaction'. Together they form a unique fingerprint.

Cite this