Preparation of magnetic polystyrene microspheres with a narrow size distribution
文献类型：期刊论文
| 作者 | Yang, CL; Guan, YP; Xing, JM; Liu, JG; Shan, GB; An, ZT; Liu, HZ |
| 刊名 | AICHE JOURNAL
 |
| 出版日期 | 2005-07-01 |
| 卷号 | 51期号:7页码:2011-2015 |
| 关键词 | preparation polystyrene microspheres superparamagnetic narrow size distribution spraying suspension polymerization (SSP) |
| ISSN号 | 0001-1541 |
| 其他题名 | Aiche J. |
| 中文摘要 | A spraying suspension polymerization process for preparation of magnetic polystyrene microspheres with a narrow size distribution was proposed. The magnetite (Fe3O4) nanoparticles with hydrophobic shell were first prepared by a modified chemical coprecipitation method. Then the oil solution, composed of monomer styrene, crosslinker divinylbenzene, Fe3O4 nanoparticles, and initiator benzoyl peroxide, was sprayed into the poly(vinyl alcohol) aqueous solution by a pressure of nitrogen gas to form droplets. Finally, the droplets would be polymerized rapidly to magnetic polystyrene microspheres at the polymerization temperature. The morphology and magnetic properties of microspheres were examined using a scanning electron microscope and a vibrating sample magnetometer. The results showed that the magnetic microspheres had a narrow size distribution with mean diameter of around 10 mu m and smooth surface, and the magnetic microspheres with saturation magnetization of 15.6 emu/g exhibited distinct superparamagnetic characteristics. Powder X-ray diffraction was used to investigate the structure of the magnetite nanoparticles dispersed in the polystyrene matrix. (c) 2005 American Institute of Chemical Engineers. |
| 英文摘要 | A spraying suspension polymerization process for preparation of magnetic polystyrene microspheres with a narrow size distribution was proposed. The magnetite (Fe3O4) nanoparticles with hydrophobic shell were first prepared by a modified chemical coprecipitation method. Then the oil solution, composed of monomer styrene, crosslinker divinylbenzene, Fe3O4 nanoparticles, and initiator benzoyl peroxide, was sprayed into the poly(vinyl alcohol) aqueous solution by a pressure of nitrogen gas to form droplets. Finally, the droplets would be polymerized rapidly to magnetic polystyrene microspheres at the polymerization temperature. The morphology and magnetic properties of microspheres were examined using a scanning electron microscope and a vibrating sample magnetometer. The results showed that the magnetic microspheres had a narrow size distribution with mean diameter of around 10 mu m and smooth surface, and the magnetic microspheres with saturation magnetization of 15.6 emu/g exhibited distinct superparamagnetic characteristics. Powder X-ray diffraction was used to investigate the structure of the magnetite nanoparticles dispersed in the polystyrene matrix. (c) 2005 American Institute of Chemical Engineers. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | POLYMERIZATION ; SEPARATION |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000230059100018 |
| 公开日期 | 2013-10-25 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4235]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Lab Separat Sci & Engn, State Key Lab Biochem Engn, Inst Proc Engn, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, CL,Guan, YP,Xing, JM,et al. Preparation of magnetic polystyrene microspheres with a narrow size distribution[J]. AICHE JOURNAL,2005,51(7):2011-2015. |
| APA | Yang, CL.,Guan, YP.,Xing, JM.,Liu, JG.,Shan, GB.,...&Liu, HZ.(2005).Preparation of magnetic polystyrene microspheres with a narrow size distribution.AICHE JOURNAL,51(7),2011-2015. |
| MLA | Yang, CL,et al."Preparation of magnetic polystyrene microspheres with a narrow size distribution".AICHE JOURNAL 51.7(2005):2011-2015. |
入库方式： OAI收割
来源：过程工程研究所
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