It introduced the gel chromatography to determine the average molecular weight and molecular weight distribution of high polymer.
介绍了用凝胶色谱法测定高聚物的平均分子量及分子量分布。
The polymer with a viscosity average molecular weight beyond 200 000 was fairly reproducible by optimizing the polymerization conditions.
优化聚合条件可以获得粘均分子量大于200 000的聚丙交酯材料，聚合结果具有良好的重复性。
The number-average molecular weight of the polymer decreased, the molecular weight distribution was slightly wide, but the conversion increased as the polymerization temperature increasing.
温度升高，聚合反应的转化率增加，聚合产物数均分子量降低；
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