本文介绍了羧甲基淀粉的研究现状，合成原理和方法，并对羧甲基淀粉取代度测试的方法进行了详细的介绍。
The paper introduces the present research carboxymethyl starch synthesis principle and method, and the substitution degree of carboxymethyl starch test methods were introduced in detail.
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。
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.
采用干法工艺制备了不同取代度的羧甲基淀粉，测试了其浆液、浆膜性能。
A series of CMS with different substitution degree are synthesized by dry preparation, and size paste and films are also tested.
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。
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。
With the determined parameters of synthesis, we can obtain CMS with high degree of substitution of 1.10 in one step carboxymethylation process.
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