摘要
以木薯淀粉为原料,用醋酸酐为酯化剂,以乙酸为分散递质,探索了以浓硫酸、对甲基苯磺酸、十二烷基苯磺酸为催化剂对淀粉醋酯化反应的影响.用红外光谱对反应产物的结构进行鉴定.实验结果表明:十二烷基苯磺酸可以作为淀粉酯化的催化剂.
The effect of the catalysts, e.g., concd, sulfuric acid, p-toluenesulfonic acid, dodecylbenzenesulfonic acid on the esterification of starch was studied with cassava starch as the raw material, acetic anhydride as the esterifying agent and acetic acid as the dispersion medium. The product structures were detd. by IR spectra. The exptl, results demonstrated that dodecylbenzenesulfonic acid could be used as the catalyst for starch esterification.
出处
《印染助剂》
CAS
2007年第4期14-16,共3页
Textile Auxiliaries
关键词
木薯淀粉
醋酯化淀粉
酯化
催化剂
取代度
cassava starch
acetated starch
esterification
catalysts
substitution degree
