| 磁性聚苯乙烯微球的合成和特性 |
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| 引用本文： | 邱广明 章贤明. 磁性聚苯乙烯微球的合成和特性[J]. 高分子材料科学与工程, 1993, 9(2): 38-43 |
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| 作者姓名： | 邱广明 章贤明 |
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| 作者单位： | 中国科学院成都有机化学研究所，中国科学院成都有机化学研究所，中国科学院成都有机化学研究所 成都 610015，成都 610015，成都 610015 |
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| 摘 要： | 本文报导了磁性聚苯乙烯微球的合成和特性。采用改进了的乳液聚合法,在磁流体存在下进行苯乙烯、二乙烯基苯和丙烯酸的三元共聚,可得到含0.067％Fe_3O_4、平均拄径为0.06～0.7μm的磁性聚苯乙烯微球。该微球外观呈球形,内部为多相构造,可在磁场下被分离出来。微球粒径分布窄,具有良好的机械稳定性和耐酸性。实验表明,引发剂和乳化剂用量减少,微球粒径增大;分散介质中乙醇含量对磁性聚苯乙烯微球的形成有很大影响,增加乙醇含量可使微球粒径达到1mm。
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| 关 键 词： | 磁性微球 聚苯乙烯 乳液聚合 |
STUDIES ON MAGNETIC POLYMER MICROSPHERES PREPARATION AND CHARACTERIZATION |
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| Qiu Guangming Zhang Xianming Sun Zonghua. STUDIES ON MAGNETIC POLYMER MICROSPHERES PREPARATION AND CHARACTERIZATION[J]. Polymer Materials Science & Engineering, 1993, 9(2): 38-43 |
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| Authors: | Qiu Guangming Zhang Xianming Sun Zonghua |
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| Abstract: | The paper reported synthesis and characterization of magnetic polystyrene microspheres. The magnetic polymer microspheres, containing 0. 067 % FeaO4 and having 0. 06 - 0. 7 um mean diameter, were synthesized, in the presence of magnetic fluid, by the improved emulsion polymerization of styrene. It has a spherical apperance and the internal construction of multi-phases. The magnetic polymer microspheres can be separated by magnetic field. The microspheres have narrow distribution of diameter, excellent mechanical stability and acid-resistivity. Experiments have indicated that, the less initiator and emulsif ier, the larger microsphere diameter 5 the ethanol content in dispersion media had a great effect on formation of magnetic polystyrene microspheres, increasing ethanol content could make the microsphere diameter reach 1 mm. |
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| Keywords: | magnetic microsphere polystyrene microsphere emulsion polymerization. |
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