原位沉析法制备有序排列四氧化三铁/壳聚糖纳米复合材料的研究  

Preparation of Orientated Magnetite/Chitosan Nano-composite Material via In-situ Precipitation

作　　者：胡巧玲[1] 陈福平[1] 李保强[1] 沈家骢[1] 

机构地区：[1]浙江大学高分子复合材料研究所,杭州310027

出　　处：《高等学校化学学报》2005年第10期1960-1962,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:50173023);国家自然科学重点基金(批准号:50333020);浙江省科技计划项目(批准号:2003C31044)资助.

摘　　要：Because of biominerals,controlled morphology and unique properties,biominerals become the idea headspring for making organic-inorganic hybrid composite with new patterns.The preferred orientation phenomena of minerals on bioorganics are frequently observed in organisms,this can make the material′s performances become better,the human bone is a good example.By now,in most of the prepared nano-composites,the nano-particles dispersed randomly in polymer matrix.In this paper,magnetic/chitosan nano-composite in the magnetic environment was prepared via in-situ precipitation.From the XRD,TEM testing results,it can be concluded that nano magnetite particles arranged orderly in the chitosan matrix,the average diameter of the particles is about 11.3 nm.This provides a new method for preparing three-dimensional magnetic biomaterial,and has broad potential application to the bone repair field.Because of biominerals, controlled morphology and unique properties, biominerals become the idea headspring for making organic-inorganic hybrid composite with new patterns. The preferred orientation phenomena of minerals on bioorganics are frequently observed in organisms, this can make the material＇s performances become better, the human bone is a good example. By now, in most of the prepared nano-composites, the nano-particles dispersed randomly in polymer matrix. In this paper, magnetic/chitosan nano-composite in the magnetic environment was prepared via in-situ precipitation. From the XRD, TEM testing results, it can be concluded that nano magnetite particles arranged orderly in the chitosan matrix, the average diameter of the particles is about 11.3 nm. This provides a new method for preparing three-dimensional magnetic biomaterial, and has broad potential application to the bone repair field.

关 键 词：壳聚糖 纳米FE3O4 有序排列 复合材料 

分 类 号：O631[理学—高分子化学]