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Citation: JIN Dan-Ping, DING Yun-Sheng, XIONG Ren-Yan. Preparation and Characterization of Magnetic Microspheres from Merrifield Resin Immobilized by Imidazolium Ionic Liquid[J]. Chinese Journal of Applied Chemistry, ;2010, 27(11): 1252-1255. doi: 10.3724/SP.J.1095.2010.00077 shu

Preparation and Characterization of Magnetic Microspheres from Merrifield Resin Immobilized by Imidazolium Ionic Liquid

a. Institute of Chemical Engineering and Polymer Materials, School of Chemical Engineering, Hefei University of Technology, Hefei 230009;
b. Anhui Key Laboratory of Controllable Chemistry Reaction & Material Chemical Engineering, Hefei 230009

Received Date: 29 January 2010
Revised Date: 29 April 2010

Merrifield resin microspheres immobilized by methoxycarbonylethyl imidazolium ionic liquid(IL) with magnetism were successfully prepared.We chose FeOOH and γ-Fe₂O₃ as the magnetic resource and employed the simple co-precipitation method to realize the synthesis,which is feasible and will lower the overall cost for further industrial scale application if possible.In the standpoint of comparison,the IL loaded on the merrifield resin with non-magnetic was also synthesized.The structures and properties of these two kinds of microspheres were investigated by vibrating sample magnetometer(VSM),Fourier transform infrared spectroscopy(FT-IR),X-ray diffraction(XRD),thermogravimetric analysis(TGA),as well as other performance tests.The testing results validate the structures of the two microspheres with our expectation,and indicate that the thermal stability of magnetic microspheres is superior to the non-magnetic one,so its decomposition does not occur below 200℃.The magnetic microspheres showed super-paramagnetic and did not form aggregates when the external magnetic field was absent.Magnetic separation of the magnetic microspheres has also been carried out in a 3.0 × 10^-4 T single direction electromagnetic field to illustrate the predominant separation efficiency of the magnetic one.The results showed that the magnetic particles could be completely separated from water within 10 s in 3.0 × 10^-4 T electromagnetic field.
- ionic liquids,
- magneticmic rospheres,
- Merrifield resin,
- loading
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