Lalida CharoenmarkDuangporn PolpanichRaweewan ThiramanasPramuan TangboriboonratMahidol UniversityThailand National Nanotechnology Center2018-06-112018-06-112012-06-01Macromolecular Research. Vol.20, No.6 (2012), 590-59620927673159850322-s2.0-84864631030https://repository.li.mahidol.ac.th/handle/20.500.14594/13915This 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.Mahidol UniversityChemical EngineeringChemistryMaterials ScienceArticleSCOPUS10.1007/s13233-012-0081-7