In most cases, the molecular weights rise to a finite value with time or conversion. 在大多数情况下,分子量(MW)随时间或转化率升高至一个有限的值。
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(MW)高度可控性和窄的分子量(MW)分布。
With the increase of the molecular weights and the addition amount of PEG, the average crystal size decreased. 随着聚乙二醇的分子量(MW)和添加量的增加,二氧化钛的平均晶粒尺寸减小。
The effects of different chain extenders, amount of extenders, molecular weights of soft segments on the hydrolysis stability of polyurethane are studied and parameters Q, W are introduced. 研究和讨论了不同扩链剂、扩链剂的量以及软段分子量(MW)对聚酯型聚氨酯弹性体水解稳定性的影响,并引入了参数Q、W。
Characterization of Chitosans with different molecular weights and deacetylation degrees used as tissue engineering materials 不同分子量(MW)和脱乙酰度壳聚糖用作组织工程材料的性质评价