Synthesis and properties of micron-size magnetic polymer spheres with epoxy groups
文献类型：期刊论文
| 作者 | Liu, XQ; Guan, YP; Xing, JM; Ma, ZY; Liu, HH |
| 刊名 | CHINESE JOURNAL OF CHEMICAL ENGINEERING
 |
| 出版日期 | 2003-12-01 |
| 卷号 | 11期号:6页码:731-735 |
| 关键词 | magnetic microsphere synthesis suspension polymerization bioseparation |
| ISSN号 | 1004-9541 |
| 其他题名 | Chin. J. Chem. Eng. |
| 中文摘要 | Micron-size superparamagnetic poly (styrene-divinylbenzene-glycidyl methacrylate) (PSt-DVB-GMA) spheres were prepared via a modified suspension copolymerization method. Oleic acid coated magnetite (Fe3O4) 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 properties of magnetic PSt-DVB-GMA microspheres were examined by SEM, TEM, VSM, XRD and FT-IR. The magnetic microspheres obtained have very small size (about 4-7 mum) in diameter with narrow size distribution and superparamagnetic characteristics. Powder X-ray diffraction measurements show the inverse cubic spinel structure for the magnetite dispersed in polymer microspheres. FT-IR spectroscopy indicates extensive oxirane groups existed on the surface of magnetic PSt-DVB-GMA microspheres. |
| 英文摘要 | Micron-size superparamagnetic poly (styrene-divinylbenzene-glycidyl methacrylate) (PSt-DVB-GMA) spheres were prepared via a modified suspension copolymerization method. Oleic acid coated magnetite (Fe3O4) 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 properties of magnetic PSt-DVB-GMA microspheres were examined by SEM, TEM, VSM, XRD and FT-IR. The magnetic microspheres obtained have very small size (about 4-7 mum) in diameter with narrow size distribution and superparamagnetic characteristics. Powder X-ray diffraction measurements show the inverse cubic spinel structure for the magnetite dispersed in polymer microspheres. FT-IR spectroscopy indicates extensive oxirane groups existed on the surface of magnetic PSt-DVB-GMA microspheres. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | MICROSPHERES ; PARTICLES ; IMMOBILIZATION ; PURIFICATION ; CELLS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000187739500021 |
| 公开日期 | 2013-11-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/5365]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Lab Separat Sci & Engn, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, XQ,Guan, YP,Xing, JM,et al. Synthesis and properties of micron-size magnetic polymer spheres with epoxy groups[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2003,11(6):731-735. |
| APA | Liu, XQ,Guan, YP,Xing, JM,Ma, ZY,&Liu, HH.(2003).Synthesis and properties of micron-size magnetic polymer spheres with epoxy groups.CHINESE JOURNAL OF CHEMICAL ENGINEERING,11(6),731-735. |
| MLA | Liu, XQ,et al."Synthesis and properties of micron-size magnetic polymer spheres with epoxy groups".CHINESE JOURNAL OF CHEMICAL ENGINEERING 11.6(2003):731-735. |
入库方式： OAI收割
来源：过程工程研究所
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