Using 80% dipropylene glycol and 20% 1,4-butanediol as molecular regulator could also narrow the molecular weight distribution and reduce the amount of smaller molecules in pr...

• 研究还发现分子量调节剂对产品分子量分布有较大影响,采用混合型调节剂也能够使分子量分布变窄并降低小分子物质含量。本文还利用所得到的聚碳酸亚丙酯树脂制备出性能优良的聚氨酯弹性体。