分子量分布曲线

分子量分布曲线是分析聚合物性能最有效的指标，但是目前缺乏有效的在线测量手段，在线控制困难重重。

MWD curve is the best parameter for polymer performance analyzing .

本文采用两层结构优化方法，内层以氢气分段阶跃进料量为优化变量，以切换后的分子量分布曲线为优化目标，外层逐步缩减氢气分段阶跃进料的时间。

The optimization scheme employs a two-layer structure . The inner layer uses hydrogen quantity for optimization variables and the target MWD curve for the optimization goal , and the outer layer gradually reduces the feed time of hydrogen .

其中Mp为分子量微分分布曲线峰位分子量，而M10和M90则为累积分布曲线中10%和90%处的分子量。

In these expressions , M p is the peak MW of the differential distribution curve , and M 10 and M 90 signify MW at 10 % and 90 % cumulative weight of the integral distribution curve .

通过提供橡胶、塑料、合成纤维等高分子的平均分子量及分子量分布曲线等数据，提供高分子的多种物性信息。

Acquiring data such as polymer molecular weight and molecular weight distribution curve of rubber , plastics , and synthetic fibers to provide a variety of physical properties of polymer information .

示差折光检测器。结果：利用GPC软件处理，得到莫海林的数均、重均分子量和分子量累积重量分布曲线。

Results : The Mn , Mw and molecular weight distribution curves ( cumulative weight fraction distribution curves ) were obtained by GPC software from the calibration curves which were made by standard dextrans .