| 聚苯胺-LiNi铁氧体复合纳米微粒的原位合成及其键合机制 |
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| 引用本文： | 蒋静,李良超,徐烽,颜冲. 聚苯胺-LiNi铁氧体复合纳米微粒的原位合成及其键合机制[J]. 化学学报, 2007, 65(1): 53-58 |
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| 作者姓名： | 蒋静 李良超 徐烽 颜冲 |
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| 作者单位： | 浙江师范大学化学系,物理化学研究所,金华,321004;中国计量学院东磁研究院,杭州,310018 |
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| 基金项目： | 浙江省自然科学基金(No.Y405038)，浙江省科技计划(No.2006C21080)资助项目. |
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| 摘 要： | 通过原位溶液聚合法制备了聚苯胺-LiNi铁氧体(LiNi0.5Fe2O4)复合纳米微粒, 用X射线衍射(XRD)、红外光谱(FTIR)、拉曼光谱(Raman)、紫外-可见光谱(UV-Vis)、透射电子显微镜(TEM)以及振动样品磁强计(VSM)等技术表征了复合物的结构、形貌和磁性能. 结果表明, 复合物在室温外加磁场下表现出亚铁磁性物质具有的磁滞现象, 铁氧体颗粒对苯胺的聚合起到了核的作用; 复合物中铁氧体与聚苯胺之间存在着比较明显的键合作用, 探讨了铁氧体与聚合物分子链之间的键合机制.
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| 关 键 词： | LiNi铁氧体 聚苯胺 纳米复合物 磁学性质 键合机制 |
| 收稿时间： | 2006-03-30 |
| 修稿时间： | 2006-03-302006-09-11 |
In Situ Synthesis of Polyaniline-LiNi Ferrite Nanocomposite and Its Bonding Mechanism |
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| JIANG, Jing,LI, Liang-Chao,XU, Feng,YAN, Chong. In Situ Synthesis of Polyaniline-LiNi Ferrite Nanocomposite and Its Bonding Mechanism[J]. Acta Chimica Sinica, 2007, 65(1): 53-58 |
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| Authors: | JIANG Jing LI Liang-Chao XU Feng YAN Chong |
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| Affiliation: | a. Department of Chemistry, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004; b. Dongyang Magnetic Institute, Chinese Institute of Metrology, Hangzhou 310018 |
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| Abstract: | Polyaniline-LiNi ferrite (LiNi0.5Fe2O4) nanocomposites were synthesized by in situ aqueous po- lymerization of aniline in the presence of ferrite. The structure, morphologies and magnetic properties of samples were characterized by X-ray diffraction (XRD), infrared spectra (FTIR), Raman spectra, UV-Vis spectra, transmission electron microscope (TEM) and vibrating sample magnetometer (VSM) techniques. The results indicated that the nanocomposites under applied magnetic field exhibited the hysteresis loops of the ferrimagnetic nature at room temperature. The ferrite particles had the core effect on the polymerization of aniline. The bonding interaction existed between ferrite particles and polyaniline in the composites, and the bonding mechanism was investigated. |
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| Keywords: | LiNi ferrite polyaniline nanocomposite magnetic property bonding mechanism |
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