The generated polymers exhibit good solubility in water, controlled molecular weights and narrow polydispersity. 这类高分子具有良好的水溶性，展现出分子量高度可控性和窄的分子量分布。
It is found that the presence of regulators affects the equilibrium value of polydispersity index of polymers. 用已内酰胺开环缩聚反应进行了实验验证。
A low molecular weight brominated polystyrene is prepared based on low molecular weight and small polydispersity polystyrene. 摘要以低相对分子质量、相对分子质量分布窄的聚苯乙烯为原料，合成低相对分子质量溴化聚苯乙烯；
The result also demonstrates that the primary factor resulting in flux decrease may not be higher organic MW, but polydispersity. 试验还表明，相对分子质量较大的有机物并非通量下降的主要因素，有机物的分散性可能是影响通量的主要因素。
Weight average relative molecular mass, polydispersity and gel permeationchromatograms during the degradation process were obtained. 发现聚合单元为随机分布的壳聚糖样品，其降解是均匀的；
The results indicated that different synthetic methods affected the molecular weight, polydispersity index and sturctures of precursor polymer. 实验结果表明，不同合成方法影响前聚物的产率、分子量及其分布、以及微观结构。
