The DS, intrinsic viscosity and weight-average molecular weight of the products were calculated. The products were characterized with IR and NMR spectroscopy.
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 water insoluble precipitate (acetic acid lignin, AcL) had a low weight-average molecular weight range from 341 to 253 (Mw) and a narrow molecular weight distribution from 1.1 to 1.2.
水不溶沉淀物（乙酰化木质素）的重均分子量分布在341到253之间，分散性系数分布在1.1到1.2这一窄范围内。
The average molecular weight and molecular weight distribution were determined with acid hydrolyzed iron dextran samples.
样品经酸水解，测得右旋糖酐铁中右旋糖酐的重均分子量和分子量分布。
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