急求：我是做多嵌段共聚物的，首先合成羟基封端的预聚物，然后用HDI扩链，文章投出去之后，审稿人让给出嵌段共聚物中每段的平均单元数，还说要求平均单元数需要用SEC测得预聚物的分子量，由于返回日期快到了，还没搞明白要怎么算，急求大牛们帮忙。附上审稿人的意见：Average number of repeating unit, n, in the multiblock copolymers is very important factor to study the total molar mass and molecular weight which have an effect their structures and mechanical/thermal properties. However, the n values were not investigated in the manuscript. In order to calculate them, molecular analysis by SEC prepolymer should be required. 返回小木虫查看更多