Journal
JOURNAL OF MATERIALS SCIENCE
Volume 48, Issue 15, Pages 5302-5308Publisher
SPRINGER
DOI: 10.1007/s10853-013-7322-9
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Funding
- National Natural Science Foundation of China [51173146]
- National Basic Research Program of China [2010CB635111]
- key programs of international technology cooperation of Shaanxi province [2011KW-12]
- Doctorate Foundation of Northwestern Polytechnical University [CX 201238]
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Fe3O4 nanoparticles were prepared by solvothermal reaction, and structure-tailored Fe3O4/poly(glycidyl methacrylate-ethyleneglycol dimethacrylate-N-vinylcarbazole) (Fe3O4/P(GMA-EGDMA-NVCz)) core-shell microspheres were achieved by distillation-precipitation polymerization of GMA, EGDMA, and NVCz in the presence of Fe3O4 nanoparticles. The properties of Fe3O4/P(GMA-EGDMA-NVCz) microspheres were characterized by transmission electron microscopy(TEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), vibrating sample magnetometry (VSM), and fluorescence spectroscopy. The results showed that the size of Fe3O4/P(GMA-EGDMA-NVCz) core-shell microspheres could be controlled to 930-470 nm by adjusting the amount of shell monomers, corresponding magnetic content of 45-82 wt%, and saturation magnetization of 32-63 emu/g. Moreover, the intensity of the fluorescence increased considerably with the decrease of shell thickness and the increase of NVCz concentration in the monomer mixture.
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