研究了水的用量，醚化温度，溶剂的量对CMS的粘度和取代度的影响。
Study the dosage of the water temperature, etherification, solvent quantity of CMS viscosity and substitution degree.
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.
相转移催化环烷基化反应不适合采用无溶剂法来进行，对反应过程中的溶剂效应进行分析后选择甲苯作为溶剂和带水剂。
The reaction was not suitable conducted under solvent-free condition, water formed during the reaction was removed by azeotropic distillation with toluene throughout the reaction.
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