Fabrication of one-dimensional Fe₃O₄/P(GMA-DVB) nanochains by magnetic-field-induced precipitation polymerization

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• 作者：Mingliang Ma ^{mamingliang@mail.nwpu.edu.cn} ; Qiuyu Zhang ; ^{qyzhang1803@gmail.com} ; Jinbo Dou ; Hepeng Zhang ; Dezhong Yin ; Wangchang Geng ; Yanyang Zhou
• 关键词：One-dimensional nanochains ; Self-assembly ; Precipitation polymerization ; Fe3O4/P(GMA&ndash ; DVB)
• 刊名：Journal of Colloid and Interface Science
• 出版年：2012
• 期刊代码：125_00219797
• 类别：ch
• 出版时间：15 May, 2012
• 卷：374
• 期：1
• 页码：339-344
• 文件大小：1106 K

摘要

One-dimensional (1D) magnetic Fe₃O₄/P(GMA-DVB) peapod-like nanochains have been successfully synthesized by magnetic-field-induced precipitation polymerization using Fe₃O₄ as building blocks and P(GMA-DVB) as linker. The Fe₃O₄ microspheres without surface modification can be arranged with the direction of the external magnetic field in a line via the dipolar interaction between Fe₃O₄ microspheres and linked permanently via P(GMA-DVB) coating during precipitation polymerization. The length of peapod-like nanochains can be controlled by magnetic field intensity, and the thickness of polymer shell can be tuned by the amount of monomers. Magnetic measurement revealed that these 1D peapod-like nanochains showed highly magnetic sensitivity. In the presence of magnetic field, 1D magnetic Fe₃O₄/P(GMA-DVB) peapod-like nanochains can be oriented and aligned along the direction of external magnetic field.