波谱学杂志 ›› 1986, Vol. 3 ›› Issue (3): 223-227.

• 研究论文 • 上一篇    下一篇

1H-NMR法分析线性聚氨酯预聚体

吴美玉, 雍忠根   

  1. 江苏省化工研究所, 南京
  • 收稿日期:1985-08-16 修回日期:1986-04-19 出版日期:1986-09-05 发布日期:2018-01-23

ANALYSIS OF LINEAR URETHANE PREDOLYMER BY H-NMR SPECTROSCOPY

Wu Meiyu, Yong Zhanggen   

  1. Institute of Chemical Industry Research of Jiangsu, Nanjing
  • Received:1985-08-16 Revised:1986-04-19 Online:1986-09-05 Published:2018-01-23

摘要: 利用1H-NMR法测定聚氧化丙烯醚-纯2,4二异氰酸甲苯酯体系的聚氨酯预聚体中的NCO与OH的克分子比以及体系中所使用的聚氧化丙烯醚的数均分子量,最后可计算出预聚体的分子量。

Abstract: The 1H-NMR method was applied to the determination of NCO/OH molar ratio in the PPG-2, 4 TDI-based polyurethane prepolymer systems and the determination of the number average molecular weight of PPG in the systemt. Finally the molecular weight of prepolymer can be calculated.