摘要
用１，４－丁二醇、乙二胺及二者的混合物为扩链剂，合成了嵌段及嵌段支化型聚氨酯。用ＦＴＩＲ和１ＨＮＭＲ法研究了含不同扩链剂的嵌段聚氨酯大分子的支化。
Using the FTIR and 1H NMR methods,the structures,relative ratio and inventory ratio of segmented poly(urea)urethanes which are synthesized with different extenders (1,4 butandiol,ethylene diamine and their mixtures)have been studied successfully and the ratationship between the branch ratio and inventory ratio has been determined.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1998年第2期167-172,共6页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金
关键词
聚氨酯
嵌段
结构
FTIR
NMR
支化率
Poly (urea)urethane, FTIR, 1H NMR, Branch ratio, Inventory ratio
