Korean Journal of Chemical Engineering

, Volume 32, Issue 11, pp 2355–2360 | Cite as

Highly selective magnetic polymer particles via molecular imprinting

  • Xiaobing Wang
  • Guihua QiuEmail author
  • Yi Ge
  • Wei Zheng
  • Lingmei Kong
  • Yajuan Xue
  • Bin Ren
  • Yuxing Peng
Polymer, Industrial Chemistry


Magnetic hydrophilic molecularly imprinted polymer (MIP) particles were successfully synthesized via an inverse suspension polymerization in silicone oil, by employing methacryloxypropyltrimethoxysilane(MPS)-modified Fe3O4 nanoparticles as magnetic particles, 2,4-dichlorophenoxyacetic acid (2,4-D) as template, hydroxyethyl methacrylate (HEMA) as hydrophilic monomer, and acetonitrile as high polar porogen. The synthesized magnetic hydrophilic MIP particles could be separated rapidly under an external magnetic field. About 94% transmittance of the particlewater suspension could be reached within 20 min by magnetic separation, whereas about 84% transmittance was achieved after at least 180 min by sedimentation. The adsorption capacity of the particles was also studied in pure aqueous environments. These hydrophilic MIP particles had a higher selectivity for templates. Hydrophilic MIP particles took on a higher imprinting factor than hydrophobic MIP particles and 2,4-D were able to rebind hydrophilic MIP particles more easily than 4-Chorophenoxyacetic acid.


Molecular Imprinting Magnetic Particles Suspension Polymerization Hydrophilic Particles Selectivity 


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Copyright information

© Korean Institute of Chemical Engineers, Seoul, Korea 2015

Authors and Affiliations

  • Xiaobing Wang
    • 1
  • Guihua Qiu
    • 1
    Email author
  • Yi Ge
    • 2
  • Wei Zheng
    • 1
  • Lingmei Kong
    • 1
  • Yajuan Xue
    • 1
  • Bin Ren
    • 1
  • Yuxing Peng
    • 3
  1. 1.Shandong Institute of Nonmetallic MaterialsChina North Industries Group CorporationJinan, ShandongP. R. China
  2. 2.School of Aerospace, Transport and ManufactureCranfield UniversityBedfordshireUK
  3. 3.Chengdu Institute of Organic ChemistryChinese Academy of SciencesChengdu, SichuanP. R. China

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