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Core–shell-structured cross-linked poly(glycidyl methacrylate)-coated carbonyl iron microspheres and their magnetorheology

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Abstract

Poly(glycidyl methacrylate) (PGMA)-coated soft magnetic carbonyl iron (CI) particles were fabricated by cross-linking PGMA with ethylene glycol dimethacrylate. The synthesized core–shell structured CI/PGMA microspheres were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, and thermal gravimetric analysis. The CI particles were confirmed to be coated well with PGMA. A magnetorheological (MR) suspension was prepared based on the synthesized CI/PGMA particles dispersed in silicone oil and measured using a rotational rheometer at various magnetic field strengths. The sedimentation property, which was observed using a Turbiscan, indicated better settling stability than the pure CI particle-based MR suspension.

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Acknowledgements

This study was supported partially by a research Grant from the National Research Foundation, Korea (NRF-2011-0006592).

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Authors and Affiliations

  1. Department of Polymer Science and Engineering, Inha University, Incheon, 402-751, Korea

    So Young Kim, Seung Hyuk Kwon, Ying Dan Liu & Hyoung Jin Choi

  2. Department of Physics, Inha University, Incheon, 402-751, Korea

    Jeong-Seop Lee & Chun-Yeol You

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  1. So Young Kim
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  2. Seung Hyuk Kwon
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  3. Ying Dan Liu
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  4. Jeong-Seop Lee
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  5. Chun-Yeol You
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Correspondence to Hyoung Jin Choi.

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Kim, S.Y., Kwon, S.H., Liu, Y.D. et al. Core–shell-structured cross-linked poly(glycidyl methacrylate)-coated carbonyl iron microspheres and their magnetorheology. J Mater Sci 49, 1345–1352 (2014). https://doi.org/10.1007/s10853-013-7818-3

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  • DOI: https://doi.org/10.1007/s10853-013-7818-3

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