| 表面引发原子转移自由基聚合方法合成Fe3O4/PMMA复合纳米微粒 |
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| 引用本文： | 安丽娟,李兆强,王燕萍,杨柏.表面引发原子转移自由基聚合方法合成Fe3O4/PMMA复合纳米微粒[J].高等学校化学学报,2006,27(7):1372-1375. |
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| 作者姓名： | 安丽娟 李兆强 王燕萍 杨柏 |
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| 作者单位： | 1. 吉林大学超分子结构与材料教育部重点实验室,化学学院,长春,130012;天津科技大学理学院,天津,300222
2. 吉林大学超分子结构与材料教育部重点实验室,化学学院,长春,130012 |
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| 基金项目： | 国家自然科学基金(批准号:20374024)资助 |
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| 摘 要： | 采用表面引发原子转移自由基聚合方法合成了核壳结构的磁性高分子纳米微粒. 作为聚合反应引发剂的3-氯丙酸, 首先与油酸修饰的Fe3O4纳米微粒表面的部分油酸置换, 然后在Fe3O4纳米微粒表面引发甲基丙烯酸甲酯聚合, 合成的纳米复合材料用TEM, FTIR, XRD和DSC表征. 磁性测试结果表明, 所制备的磁性高分子纳米微粒仍具有超顺磁性, 但由于聚合物的存在, 其饱和磁化强度降低.
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| 关 键 词： | Fe3O4纳米微粒 原子转移自由基聚合 PMMA 磁性复合纳米微粒 |
| 文章编号： | 0251-0790（2006）07-1372-04 |
| 收稿时间： | 02 25 2005 12:00AM |
| 修稿时间： | 2005-02-25 |
Synthesis of Fe3O4/PMMA Nanocomposite Particles by Surface-Initiated ATRP and Characterization |
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| AN Li-Juan,LI Zhao-Qiang,WANG Yan-Ping,YANG Bai.Synthesis of Fe3O4/PMMA Nanocomposite Particles by Surface-Initiated ATRP and Characterization[J].Chemical Research In Chinese Universities,2006,27(7):1372-1375. |
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| Authors: | AN Li-Juan LI Zhao-Qiang WANG Yan-Ping YANG Bai |
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| Institution: | 1. Key Lab for Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130023, China; 2. College of Science, Tianjin University of Science and Technology, Tianjin 300222, China |
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| Abstract: | This paper described the synthesis of a new Fe_(3)O_(4)/PMMA core-shell nanocomposite particles with magnetism.The modified Fe_(3)O_(4) nanoparticles were firstly synthesized by ligand exchange with 3-chloropropionic acid as the initiator from oleic acid.And then,PMMA was polymerized by surface-initiated atom transfer radical polymerization(ATRP) on the surface of Fe_(3)O_(4) nanoparticles.The nanocomposites were characterized by TEM,FTIR,XRD and DSC.The magnetic properties of the Fe_(3)O_(4)nanoparticles and the Fe_(3)O_(4)/PMMA nanocomposite were also studied.The saturation magnetization of the nanocomposites was reduceded because of the existence of the polymer. |
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| Keywords: | Fe_(3)O_(4) nano particles Atom transfer radical polymarization(ATRP) PMMA Magnetic nano composite particles |
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