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丁酰化壳聚糖的制备及结构性能表征
Synthesis and Characterization of Butyryl Chitosan
【摘要】 考察了催化剂和反应时间对丁酰化反应的影响。利用红外(IR)和氢核磁共振(1H-NMR)对丁酰化壳聚糖进行了结构表征,结果表明酰化反应主要发生了O-酰化反应。同时,利用热失重(TG)考察了丁酰化壳聚糖的热稳定性,发现酰化度对丁酰化壳聚糖的初始热分解温度影响不大。
【Abstract】 In present study,butyryl chitosans were synthesized by esterification with butyric anhydride as catalyst.The effects of reaction time and catalyst on the resultant chitosan structure were investigated and characterized by 1H-NMR and IR,whose results suggest that O-acylation reaction is undertaken mainly.The TG spectra shows that the butyryl chitosan almost has the similar thermal stability as chitosan.
- 【文献出处】 高分子材料科学与工程 ,Polymer Materials Science & Engineering , 编辑部邮箱 ,2007年03期
- 【分类号】TQ28
- 【被引频次】6
- 【下载频次】551