丁酰化壳聚糖的制备及结构性能表征  

Synthesis and Characterization of Butyryl Chitosan

作　　者：刘宾元[1] 王新利[2] 张莉[1] 闫卫东[1] 李晓然[1] 

机构地区：[1]河北工业大学化工学院高分子科学与工程系,天津300130 [2]泰山学院化学系,山东泰安271000

出　　处：《高分子材料科学与工程》2007年第3期130-133,共4页Polymer Materials Science & Engineering

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。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 ^6H-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.

关 键 词：壳聚糖 酰化反应 热稳定性 

分 类 号：O636.9[理学—高分子化学]