该产品的取代度高，取代基分布均匀，具有高粘度、高钠含量、高酸粘比、高盐粘比的特点。
The product is high in degree of substitution, whose substituent distribute equally, has characteristics of high viscosity, high content of sodium, high acid-viscosity ratio.
测定了产物的取代度、 特性黏度、 相对分子质量、 吸湿保湿性，并用IR、 NMR进行结构表征。
The DS, intrinsic viscosity and weight-average molecular weight of the products were calculated. The products were characterized with IR and NMR spectroscopy.
建议在现行SY 5093—92标准中增加酸化滴定法附则，用来测定水媒法生产的CMC产品的取代度。
It is suggested that acidizing treatment and titration should be appended to SY 5093 92 to determine the substitution degree of CMC produced with water-medium method.
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