| 磁性壳聚糖复合微球的制备及表征 |
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| 引用本文： | 谢宇,魏娅,李明俊,陈素华,胡金刚.磁性壳聚糖复合微球的制备及表征[J].机械工程材料,2009(12). |
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| 作者姓名： | 谢宇 魏娅 李明俊 陈素华 胡金刚 |
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| 作者单位： | 南昌航空大学材料化学系;中国科学院光化学转换与功能材料重点实验室;理化技术研究所; |
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| 基金项目： | 国家自然科学基金资助项目(20807021); 航空科学基金资助项目(2008ZF56017); 中国科学院光化学转换与功能材料重点实验室开放课题资助项目 |
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| 摘 要： | 采用磁性Fe_3O_4纳米颗粒为磁核,用反相悬浮聚合法制备了磁性壳聚糖复合微球,用激光粒度仪和透射电镜对磁性壳聚糖微球的尺寸和形貌进行分析,考察了壳聚糖浓度、乳化剂用量、交联剂浓度、搅拌速度等参数对壳聚糖成球的影响。结果表明:使用4 mL质量浓度为4 g·L~(-1)壳聚糖溶液、0.1 mL司本-80和0.1 mg磁性Fe_3O_4纳米颗粒,经超声分散1 h后,加入0.5 mL4%的戊二醛,在转速350 r·min~(-1)搅拌条件下,室温下反应2 h,可得到形貌光滑、粒径为0.5～2 μm的磁性壳聚糖复合微球,该壳聚糖复合微球具有较好的磁响应性能。
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| 关 键 词： | 壳聚糖 Fe_3O_4纳米颗粒 复合微球 磁响应 |
Preparation and Characterization of Magnetic Chitosan Compound Microspheres |
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| XIE Yu,WEI Ya.Preparation and Characterization of Magnetic Chitosan Compound Microspheres[J].Materials For Mechanical Engineering,2009(12). |
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| Authors: | XIE Yu WEI Ya |
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| Affiliation: | XIE Yu~(1,2),WEI Ya~(1,LI Ming-jun~1,CHEN Su-hua~1,HU Jin-gang~(1,2) (1. Department of Material Chemistry of Nanchang Hangkong University,Nanchang 330063,China,2. Key Laboratory of Photochemical Conversion and Optoelectronic Materials,TIPC,CAS,Beijing 100190,China) |
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| Abstract: | With Fe_3O_4magnetic nanoparticles as magnetic nuclear,the magnetic chitosan microspheres were prepared by means of inverse suspension polymerization.The size and shape of magnetic chitosan microspheres were characterized by laser particle size analysis and TEM,respectively.The effects of the chitosan concentration,the emulsifier amount,the crosslinking reagent concentration and stirring speed on chitosan microspheres were investigated.The results show that the magnetic chitosan microspheres with smooth sur... |
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| Keywords: | chitosan Fe_3O_4 nano-particle compound microsphere magnetic response |
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