relative molecular mass and distribution

When polymer relative molecular mass and its distribution width are the same, the polymer displacement efficiency increases with the increment of the core permeability variation factor.

当聚合物的相对分子质量及其分布宽度相同时，随着岩心渗透率变异因数的增大，其聚合物驱采收率也随之增加。

It shows that the solution viscosity drops and the relative molecular mass reduces with narrow distribution.

结果表明改性栲胶溶液黏度下降，相对分子质量降低且分布集中。

The variation of relative molecular mass and its distribution in the process of SBR and PS (HIPS) were determined by gel permeation chromatograph (GPC).

使用凝胶渗透色谱仪（GPC）测定了丁苯橡胶（SBR）及聚苯乙烯（PS）和高冲聚苯乙烯（HIPS）在不同生产工艺条件下的相对分子质量及其分布的变化。