文献类型：期刊文献

中文题名：相转移催化法制备羧甲基壳聚糖

英文题名：Carboxymethyl-chitosan Prepared by Phase Transfer Catalytic Method

作者：徐云龙[1];汪传木[1];雷晓明[1]

机构：[1]华东理工大学材料学院,上海200237

年份：2003

卷号：29

期号：1

起止页码：80

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：相转移催化法;羧甲基壳聚糖;制备;相转移催化剂;氯乙酸;制备工艺;反应条件

外文关键词：chitosan; carboxymethylchitosan; preparation; phase transfer catalysis; chloroacetic acid

摘要：用相转移催化剂制备羧甲基壳聚糖,研究了反应时间、温度、碱浓度和投料比等工艺条件对羧甲基化程度及产物收率的影响。结果表明,使用相转移催化剂,反应时间缩短到3h,羧甲基壳聚糖取代度和收率分别达到0.92和84.42%。
Preparation of carboxymethylchitosan (CMC) with phase transfer catalyst was described. The effects of carboxymethylation condition on the properties and yield of CMC were also studied. The molar ratio of chitosan to chloacetic acid and sodium hydroxide, reactive temperature and reaction time were optimized. The results indicate that the degree of substitution and the yield of CMC can reach 0.92 and 84.42% respectively within 3h.