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上海大学学报(自然科学版)

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电子束辐照制备Fe3O4/PAM磁性核壳微球

刘新文1,2，俎建华2，包伯荣1，吴明红2，童龙2，孙贵生2   

  1. 1.上海大学 理学院，上海 200444； 2.上海大学 环境与化学工程学院，上海 201800
  • 收稿日期:2006-12-30 修回日期:1900-01-01 出版日期:2008-04-30 发布日期:2008-04-30
  • 通讯作者: 包伯荣

Synthesis of Fe3O4/PAM Core-Shell Magnetic Particles by EB-Irradiation

LIU Xin-wen1,2， ZU Jian-hua2， BAO Bo-rong1，WU Ming-hong2， TONG Long2， SUN Gui-sheng2   

  1. 1. College of Sciences, Shanghai University, Shanghai 200444, China;2. School of Environmental and Chemical Engineering, Shanghai University, Shanghai 201800, China
  • Received:2006-12-30 Revised:1900-01-01 Online:2008-04-30 Published:2008-04-30
  • Contact: BAO Bo-rong

摘要： 在共沉淀法制备Fe3O4纳米磁粉的基础上，以丙烯酰胺（AM）为单体，在水溶液中通过电子束辐照的方法，制备了具有核壳结构的磁性复合微球Fe3O4/PAM.采用XRD、AFM、IR等对样品进行表征.结果表明，制备的磁粉为Fe3O4单相，粒径为8 nm左右，磁性高分子微球Fe3O4/PAM直径约为100 nm，呈球形.分析了单体浓度、磁粉用量、交联剂浓度、辐照剂量等对Fe3O4/PAM微球粒径的影响规律.

关键词: Fe3O4/PAM磁性高分子核壳微球, 单体聚合, 电子束辐照

Abstract: Magnetic nanoparticles were perpared by the chemical coprecipitation of ferrouschloride and ferricchloride. Fe3O4/PAM core-shell composite magnetic particles were synthesized by EBirradiation and characterized by XRD, AFM, and FTIR. The results indicate that the only product prepared by co-operation method was singlephase Fe3O4 and its diameter was about 8 nm. The microsphere was spherical and its diameter was about 100 nm. It has been found that the diameter of the core-shell microparticles can be controlled by changing concentration of monomer AM, magnetic nanoparticles Fe3O4 and doses of irradiation.

Key words: EB-irradiation, monomer polymerization, Fe3O4/PAM core-shell magnetic composite microspheres

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