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Issue 5, 2013
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Facile fabrication of Janus magnetic microcapsules via double in situ miniemulsion polymerization

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Abstract

We describe a facile and flexible technique for fabricating Janus magnetic microcapsules via double in situ miniemulsion polymerization. Under a magnetic field, magnetic nanoparticles move to one side of the miniemulsion monomer droplets. After the monomers polymerize, an inorganic tetraethoxysilane (TEOS) phase is compressed and restricted as a liquid core due to the phase separation between TEOS and the growing polymer. After the monomers turn into a polymeric shell and the silica forms completely, the volume of the TEOS phase decreases dramatically leading to a hollow structure. Magnetic nanoparticles are chemically embedded in one side of the microcapsule shell and Janus magnetic microcapsules are fabricated efficiently and conveniently by a one-step method.

Graphical abstract: Facile fabrication of Janus magnetic microcapsules via double in situ miniemulsion polymerization

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Publication details

The article was received on 17 Oct 2012, accepted on 28 Nov 2012 and first published on 28 Nov 2012


Article type: Paper
DOI: 10.1039/C2PY20863F
Polym. Chem., 2013,4, 1459-1466

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    Facile fabrication of Janus magnetic microcapsules via double in situ miniemulsion polymerization

    J. Zhang, S. Qiu, Y. Zhu, Z. Huang, B. Yang, W. Yang, M. Wu, Q. Wu and J. Yang, Polym. Chem., 2013, 4, 1459
    DOI: 10.1039/C2PY20863F

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