Publication: Preparation of superparamagnetic polystyrene-based nanoparticles functionalized by acrylic acid
Issued Date
2012-06-01
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ISSN
20927673
15985032
15985032
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2-s2.0-84864631030
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Mahidol University
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SCOPUS
Bibliographic Citation
Macromolecular Research. Vol.20, No.6 (2012), 590-596
Suggested Citation
Lalida Charoenmark, Duangporn Polpanich, Raweewan Thiramanas, Pramuan Tangboriboonrat Preparation of superparamagnetic polystyrene-based nanoparticles functionalized by acrylic acid. Macromolecular Research. Vol.20, No.6 (2012), 590-596. doi:10.1007/s13233-012-0081-7 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/13915
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Title
Preparation of superparamagnetic polystyrene-based nanoparticles functionalized by acrylic acid
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Abstract
This work aimed to reduce the steps used for preparing homogeneous and functionalized magnetic polymeric nanoparticles (MPNP) under mild conditions. A Fe 3 O 4 magnetic nanoparticle (MNP) was synthesized by the chemical co-precipitation of an aqueous Fe 3+ /Fe 2+ solution with NH 4 OH at room temperature under N 2 atmosphere. After dispersing an MNP coated with oleic acid into a mixture of styrene (St) and acrylic acid (AA) monomers, the MPNP was functionalized with AA and was produced through the miniemulsion polymerization in the absence of a magneto-template. When mixing a crosslinking agent (divinyl benzene; DVB) with St and AA in the polymerization process, we obtained a homogeneous distribution of MNP (53%) in the PS/DVB matrix without the appearance of a non-magnetic polymer particle. The superparamagnetic MPNP, therefore, fulfilled the criteria for further use in bio-related applications.