| Synthesis and Properties of Micron-size Magneic Polymer Spheres with Epoxy Groups |
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| 作者姓名： | 刘先桥 官月平 邢建民 马志亚 刘会洲 |
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| 作者单位： | Laboratory of Separation Science and Engineering，State Key Laboratory of Biochemical Engineering，Institute of Process Engineering，Chinese Academy of Sciences，Beijing 100080，China，Laboratory of Separation Science and Engineering，State Key Laboratory of Biochemical Engineering，Institute of Process Engineering，Chinese Academy of Sciences，Beijing 100080，China，Laboratory of Separation Science and Engineering，State Key Laboratory of Biochemical Engineering，Institute of Process Engineering，Chinese Academy of Sciences，Beijing 100080，China，Laboratory of Separation Science and Engineering，State Key Laboratory of Biochemical Engineering，Institute of Process Engineering，Chinese Academy of Sciences，Beijing 100080，China，Laboratory of Separation Science and Engineering，State Key Laboratory of Biochemical Engineering，Institute of Process Engineering，Chinese Academy of Sciences，Beijing 100080，China |
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| 基金项目： | Supported by the High-Technology Research and Development Program of China(No.2002AA302211)and the National Natural science Foundation of China(No.20206032) |
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| 摘 要： | Micron-size superparamagnetic poly(styrene-divinylbenzene-glycidyl methacrylate) (PSt-DVB-GMA)spheres were prepared via a modified suspension copolymerization method. Oleic acid coated magnetite (Fe_3O_4)nanoparticles made by co-precipitation were first mixed with monomers of St, DVB, GMA, and benzoyl peroxide(BPO) to form oil in water suspension with the presence of poly(vinyl pyrrolidone) (PVP-K30) as a stabilizer.Then the temperature of mixture was increased at a controlled rate to obtain small and relatively uniform droplets.Finally, the copolymerization reaction was initiated by the decomposition of BPO. The morphology and propertiesof magnetic PSt-DVB-GMA microspheres were examined by SEM, TEM, VSM, XRD and FT-IR. The magneticmicrospheres obtained have very small size (about 4-7μm) in diameter with narrow size distribution and super-paramagnetic characteristics. Powder X-ray diffraction measurements show the inverse cubic spinel structure forthe magnetite dispersed in polymer microspheres. FT-IR
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Synthesis and Properties of Micron-size Magnetic Polymer Spheres with Epoxy Groups |
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| LIU Xianqiao,GUAN Yueping,XING Jianmin MA Zhiya and LIU Huizhou
Laboratory of Separation Science and Engineering,State Key Laboratory of Biochemical Engineering.Synthesis and Properties of Micron-size Magneic Polymer Spheres with Epoxy Groups[J].Chinese Journal of Chemical Engineering,2003(6). |
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| Authors: | LIU Xianqiao GUAN Yueping XING Jianmin MA Zhiya and LIU Huizhou
Laboratory of Separation Science and Engineering State Key Laboratory of Biochemical Engineering |
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| Affiliation: | LIU Xianqiao,GUAN Yueping,XING Jianmin MA Zhiya and LIU Huizhou
Laboratory of Separation Science and Engineering,State Key Laboratory of Biochemical Engineering,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100080,China |
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| Abstract: | |
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| Keywords: | magnetic microsphere synthesis suspension polymerization bioseparation |
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