| 磁性聚苯乙烯(Fe_3O_4/PS)微球合成的影响因素分析 |
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| 引用本文： | 杜雪岩,耿丽平,陈尹泽,马应霞.磁性聚苯乙烯(Fe_3O_4/PS)微球合成的影响因素分析[J].兰州理工大学学报,2010,36(1). |
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| 作者姓名： | 杜雪岩 耿丽平 陈尹泽 马应霞 |
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| 作者单位： | 1. 兰州理工大学,甘肃省有色金属新材料重点实验室,甘肃,兰州,730050;兰州理工大学,有色金属合金及加工教育部重点实验室,甘肃,兰州,730050
2. 兰州理工大学,甘肃省有色金属新材料重点实验室,甘肃,兰州,730050 |
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| 基金项目： | 甘肃省中青年自然科学基金(3YS061-A25-025);;兰州理工大学博士基金(SB01200602)的资助 |
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| 摘 要： | 以共沉淀法制备的Fe3O4纳米颗粒作为磁核,用聚乙二醇(PEG)为分散剂,过氧化苯甲酰(BPO)为引发剂,苯乙烯为单体,在乙醇/水混合溶剂中,采用分散聚合法制备出聚苯乙烯磁性高分子微球.研究聚合温度、Fe3O4用量、引发剂用量、分散剂用量以及乙醇/水比例等反应条件对聚合物磁性微球粒径和磁性能的影响,找出的最佳工艺参数为:单体用量为15 mL,Fe3O4用量为0.5 g,引发剂与单体的质量比为10∶1 000,醇水体积比为45/50,分散剂PEG用量为25 g,最佳反应温度为75℃.
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| 关 键 词： | Fe3O4纳米颗粒 聚苯乙烯 磁性微球 |
Analysis of influence factors on synthesis of magnetic polystyrene (Fe3O4/PS) micro-spheres |
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| DU Xue-yan,GENG Li-ping,CHEN Yin-ze,MA Ying-xia.Analysis of influence factors on synthesis of magnetic polystyrene (Fe3O4/PS) micro-spheres[J].Journal of Lanzhou University of Technology,2010,36(1). |
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| Authors: | DU Xue-yan GENG Li-ping CHEN Yin-ze MA Ying-xia |
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| Institution: | 1.State Key Laboratory of Gansu Advanced Nonferrous Metal Materials;Lanzhou Univ.of Tech.;Lanzhou 730050;China;2.Key Laboratory of Nonferrous Metal Alloys;The Ministry of Education;China |
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| Abstract: | Taking Fe3O4 nanoparticles synthesized with chemical coprecipitation as magnetic kernel,polyethylene glycol(PEG) as dispersant,benzoperoxide(BPO) as initiator,and styrene as monomer,the magnetic polystyrene microspheres(MPM) were synthesized via a dispersion-polymerization method in ethanol-water solution.The influence of polymerization temperature and dosages of Fe3O4,initiator,dispersant,and composition of ethanol-water solution on the size and magnetism of MPM.It was found that the optimal technological ... |
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| Keywords: | Fe3O4 magnetic nanoparticles polystyrene magnetic microsphere |
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