| Fe_3O_4/P(St-CBA)核壳磁性复合微球的制备及性质 |
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| 引用本文： | 邱广亮,邱广明,胡玲,柯云玲.Fe_3O_4/P(St-CBA)核壳磁性复合微球的制备及性质[J].精细化工,2001,18(5):274-277. |
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| 作者姓名： | 邱广亮 邱广明 胡玲 柯云玲 |
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| 作者单位： | 1. 内蒙古师范大学生物系,
2. 内蒙古工业大学电力学院动力系, |
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| 基金项目： | 内蒙古自然科学基金!资助项目 (990 30 3 -3)，内蒙古教育厅高校研究资助!项目 (A970 44)&& |
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| 摘 要： | 运用分散聚合法制备出Fe3O4 /P(St -CBA)核壳磁性复合微球。该微球粒径为 0 .0 75～0 .70 0 μm、w(Fe3O4 ) =0 .0 5 %～ 0 .90 % ,呈规整球型 ,表面光滑 ,在 0 .0 5T磁场中的磁响应性为3.0cm/min。制备微球的最佳条件为 :w(磁流体 ) =0 .5 %～ 3 .0 %、w(马来酸酐 ) =0 .0 %～2 .0 %、w(无水乙醇 ) =30 .0 %～ 70 .0 %。
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| 关 键 词： | 核壳磁性复合微球 分散聚合 磁流体 |
Preparation and Characterization of Fe_3O_4/P(St-CBA) Core-shell Magnetic Composite Microspheres |
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| QIU Guang-liang,QIU Guang-ming,HU Ling,KE Yun-ling.Preparation and Characterization of Fe_3O_4/P(St-CBA) Core-shell Magnetic Composite Microspheres[J].Fine Chemicals,2001,18(5):274-277. |
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| Authors: | QIU Guang-liang QIU Guang-ming HU Ling KE Yun-ling |
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| Affiliation: | QIU Guang liang 1,QIU Guang ming 2,HU Ling 1,KE Yun ling 1 |
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| Abstract: | Fe3O4/P（St-CBA）core-shell composite microspheres,having diameters of 0.075-0.700 μm,containing 0.05%-0.90% magnetite,surface carboxyl groups,and anhydride groups in magnetic composite microspheres,were synthesized by dispersion polymerization of styrene(St) and cis-butenedioic anhydride(CBA) with magnetic fluid dispersing in alcohol/water.In present study,the amount of magnetite(0.05%-0.90%) in magnetic composite microspheres was determined by atomic absorbing spectrum.Size and magnetite content of composite microspheres were highly dependent on the amounts of magnetic fluid,cis-butenedioic anhydride(CBA) and alcohol.Under the optimum conditions,the amount of magnetic fluid,CBA and alcohol were 0.5%-3.0% ,0.0%-2.0% and 30.0%-70.0% respectively. |
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| Keywords: | core shell magnetic composite microsphere disperson polymerization magnetic fluid |
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