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| Preparation of Fe3O4/PNIPAM Nano–scale Composite–microspheres |
| WEN Yuqian1, CAI Lifeng2, LIN Zhiyong1, QIAN Hao1, HAN Huiqin1, LIN Xianshui1 |
1.College of Materials Science and Engineering, Huaqiao University, Xiamen 361021
2.Department of Environment and Life Science, Putian University, Putian 351100 |
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Cite this article:
WEN Yuqian CAI Lifeng LIN Zhiyong QIAN Hao HAN Huiqin LIN Xianshui . Preparation of Fe3O4/PNIPAM Nano–scale Composite–microspheres. Chin J Mater Res, 2012, 26(1): 26-30.
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Abstract Magnetic Fe3O4 nanoparticles were prepared by co-precipitation, and further encapsulated with poly(N-isopropylacrylamide) via seeded emulsion polymerization to form Fe3O4/PNIPAM nano-scale composite-microspheres. The microspheres were characterized by FTIR, TEM, TGA and DTS. Herewith the effects of the concentration of monomer (NIPAM), cross-linker (MBA) and emulsifier (SDBS) on the diameter, magnetic Fe3O4 content of the microspheres were investigated. The reaction parameters show notable influence on the structure and morphology of the microspheres, and as a result, the diameter and magnetite content of the microspheres decreased with the decrease of monomer concentration and the increase of cross-linker concentration and emulsifier concentration.
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Received: 11 July 2011
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| Fund: Supported by Natural Science Foundation of Fujian Province No.2009J05131 and Putian Technology Program No.2009G25. |
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