磁性壳聚糖微球和纳米球合成的比较研究  

Comparative Research on Synthesis of Magnetic Chitosan Microspheres and Nanospheres

作　　者：苑星海[1] 杨洁[1] 

机构地区：[1]嘉应学院,广东梅州514015

出　　处：《纳米科技》2012年第2期71-75,共5页

基　　金：广东省科技厅科技计划资助项目（2005B16001065）.

摘　　要：实验合成了磁性壳聚糖微球和磁性纳米球，比较了二者合成工艺的异同，通过透射电子显微镜（TEM）观察纳米球的尺寸和形状、用DTG-60型热失重分析仪测定Fe3O4粒子的纯度和含量，结果发现，二者的球结构类型、颗粒尺寸和磁性不同，四氧化三铁的质量分数和交联状态也不同。Magnetic chitosan mirospheres and nanospheres were prepared, and the differences between both synthesis methods were analyzed. The size and shape of the nanospheres were observed by transmis- sion electron microscopy （TEM）. As well, the DTG-60 thermogravimetric analyzer was utilised for measuring the purity and content of the Fe3O4 particles. The results show that the sphere stucture kind and size, as well as magnetism of both particles are various, while the mass fraction and crosslinking status of ferroferric oxide are different.

关 键 词：壳聚糖 磁性微球 FE3O4 机理 

分 类 号：TB34[一般工业技术—材料科学与工程]