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Synthesis and Properties of Micron-size Magneic Polymer Spheres with Epoxy Groups
Liu XQ(刘先桥); Guan YP(官月平); Xing JM(邢建民); Ma ZY(马志亚); Liu HZ(刘会洲)
2003
Source PublicationChinese Journal of Chemical Engineering
Issue06Pages:119-123
Other Abstract<正> 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
KeywordMagnetic Microsphere Synthesis Suspension Polymerization Bioseparation
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/7034
Collection研究所(批量导入)
Recommended Citation
GB/T 7714
Liu XQ,Guan YP,Xing JM,et al. Synthesis and Properties of Micron-size Magneic Polymer Spheres with Epoxy Groups[J]. Chinese Journal of Chemical Engineering,2003(06):119-123.
APA Liu XQ,Guan YP,Xing JM,Ma ZY,&Liu HZ.(2003).Synthesis and Properties of Micron-size Magneic Polymer Spheres with Epoxy Groups.Chinese Journal of Chemical Engineering(06),119-123.
MLA Liu XQ,et al."Synthesis and Properties of Micron-size Magneic Polymer Spheres with Epoxy Groups".Chinese Journal of Chemical Engineering .06(2003):119-123.
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