high degree of substitution

基本解释

Synthesis and characterization of starch acetate of high degree of substitution;
通过半干法制备高取代度阳离子淀粉。
With the determined parameters of synthesis, we can obtain CMS with high degree of substitution of 1.10 in one step carboxymethylation process.
在所确定的最佳反应条件下，能制备取代度为1．10的羧甲基淀粉醚。
This paper discusses the optimum condition for preparing carboxymethyl starch with high degree of substitution and high viscosity by using the solution isopropanol-water through etherification.
探讨了以异丙醇-水作溶剂，通过一次醚化，制备高取代度、高粘度羧甲基淀粉醚的最佳条件。

高取代度
The cationic starches with high degree of substitution were prepared and many affecting factors, such as reactant, reagent, catalyst and reaction conditions, were discussed in detail. At the same time, the application properties of the cationic starches were investigated.
本文研究了高取代度阳离子淀粉制备中反应物、反应试剂、催化剂及工艺条件，并对其应用性能进行了考察。
机械工程
高取代度
Synthesis and properties of CMCS and CMCSa were studied. A high degree of substitution(DS=2.2) carboxymethyl corn starch(CMCS) was prepared by one-step carboxymethylation.
首先通过一次羧甲基化制备了DS_(cm)=2.2的高取代度羧甲基玉米淀粉(CMCS)。