摘要
微波干法制取高取代度的阳离子淀粉 ,用高速搅拌机混合物料 ,氢氧化钾做催化剂 ,间歇式微波介电加热 ,温度不超过 85°C,阳离子试剂的转化率可达 95 % ,产品取代度 0 .3 5～ 0 .5 0 ,常温下遇水糊化 ,在水中有较好的溶解性。
Highly substituted cationic starch was prepared by microwave radiation in dry process. In this preparation, starting materials mixed with high speed stirrer, potassium hydroxide used as catalyst and discontinuous heated by microwave radiation at temperature 60~85°C to give 0.35~0.50 degree of substitution cationic starch. The conversion of cationic reagent reached 95%. The product is soluble in water. It is pasted when it meets water.
出处
《化学世界》
CAS
CSCD
2000年第7期360-362,共3页
Chemical World
基金
北京市教委科技发展项目! (970 3 0 70 )
