| 聚苯乙烯/甲基丙烯酸磁性微球的制备与表征 |
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| 引用本文： | 刘祖黎,杨雄波.聚苯乙烯/甲基丙烯酸磁性微球的制备与表征[J].华中科技大学学报(自然科学版),2006,34(6):46-48. |
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| 作者姓名： | 刘祖黎 杨雄波 |
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| 作者单位： | 华中科技大学,物理系,湖北,武汉,430074;三峡大学,理学院,湖北,宜昌,443002 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 以纳米级氧化铁为磁性载体,以苯乙烯和甲基丙烯酸为单体,用微乳液法制备了P(St-MAA)磁性微球.光学显微镜照片和磁滞回线显示微球在水中分散均匀,表现出超顺磁性;红外谱说明微球表面含有羧基基团;通过电导率仪测试,计算出了微球表面羧基含量,并发现其随甲基丙烯酸单体含量的增加呈非线性增加.荧光显微镜观察,显示微球和亲与素连接很好.
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| 关 键 词： | 磁性微球 微乳液 电导率 超顺磁性 |
| 文章编号： | 1671-4512(2006)06-0046-03 |
| 收稿时间： | 06 27 2005 12:00AM |
| 修稿时间： | 2005年6月27日 |
Study of preparation of magnetic P(St-MAA) microspheres and its characterization |
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| Liu Zuli,Yang Xiongbo.Study of preparation of magnetic P(St-MAA) microspheres and its characterization[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2006,34(6):46-48. |
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| Authors: | Liu Zuli Yang Xiongbo |
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| Abstract: | Taken the nanoparticles Fe3O4 as the magnetic carrier, and Stryene (St) and Methacrylic acid (MAA) as the monomers, the magnetic P(St-MAA) microspheres were prepared by microemulsion polymerization. The picture of the optical microscope and magnetic loop showed it was possessed of good dispersion and superparamagnetic behavior. FTIR indicated there were abundant functional groups -COOH on the surfaces of the magnetic microspheres. The amount of-COOH groups was measured by conductometric titration, and increased nonlinearly with the increment of the monomer MAA. The fluorescence microscope.image showed that the avidin was connected well on the surfaces of the microspheres. |
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| Keywords: | magnetic microspheres microemulsion conductance superparamagnetic |
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