电子束辐照制备Fe3O4/PAM磁性核壳微球  

Synthesis of Fe_3O_4/PAM Core-Shell Magnetic Particles by EB-Irradiation

作　　者：刘新文[1] 俎建华[2] 包伯荣[1] 吴明红[2] 童龙[2] 孙贵生[2] 

机构地区：[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

出　　处：《上海大学学报（自然科学版）》2008年第2期183-186,193,共5页Journal of Shanghai University:Natural Science Edition

基　　金：国家自然科学基金资助项目(50303009)

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8nm左右,磁性高分子微球Fe3O4/PAM直径约为100nm,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.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 cooperation 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 Fe3O4 and doses of irradiation. concentration of monomer AM, magnetic nanoparticles

关 键 词：Fe3O4/PAM磁性高分子核壳微球 电子束辐照 单体聚合 

分 类 号：O635[理学—高分子化学] O644[理学—化学]