期刊
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
卷 48, 期 1, 页码 57-64出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10601325.2011.528309
关键词
Magnetic nanoparticles; chitosan; microscopic observation; thermal analysis
资金
- National Natural Science Foundation of China [30571462]
A novel modifying process was designed to prepare ultra small magnetic chitosan nanoparticles which exhibited unique thermal stability and decomposition mechanism. The chemical structures and physical properties of the prepared products were characterized using FTIR, TEM, XRD, TGA and DSC techniques. The results revealed that this approach eliminated the aggregation among nanoparticles. The magnetic chitosan particles were 10-15 nm in size with good dispersibility and new thermal property. To further study the decomposition process, the combined TGA-FTIR technique was used to the analysis of the evolution with the temperature of the gas products evolved in the degradation of the magnetic chitosan. The phenomena were observed directly from TGA-FTIR stack plots. From the measurements data, it suggested that the unusual thermal behavior of chitosan might be attributed to the additional bridging through metal oxide.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据