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Fe_3O_4/P(St-CBA)核壳磁性复合微球的制备及性质
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.
作者姓名:邱广亮  邱广明  胡玲  柯云玲
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,
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)&&
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 %。

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
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.
Authors:QIU Guang-liang  QIU Guang-ming  HU Ling  KE Yun-ling
Affiliation:QIU Guang liang 1,QIU Guang ming 2,HU Ling 1,KE Yun ling 1
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.
Keywords:core  shell magnetic composite microsphere  disperson polymerization  magnetic fluid
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