文献类型：期刊文献

英文题名：Hydrogen-bonding properties of segmented polyether poly(urethane urea) copolymer

作者：Luo, N; Wang, DN; Ying, SK

机构：[1]E CHINA UNIV SCI & TECHNOL,INST MAT SCI & ENGN,SHANGHAI 200237,PEOPLES R CHINA

年份：1997

卷号：30

期号：15

起止页码：4405

外文期刊名：MACROMOLECULES

收录：;WOS:【SCI-EXPANDED(收录号:WOS:A1997XP20200023)】；

语种：英文

摘要：FTIR was used to investigate the effects of thermal annealing on the hydrogen-bonding properties of a poly(urethane urea) copolymer. The copolymer was based on ethylene oxide-capped poly!propylene oxide) diol, 4,4'-diphenylmethane diisocyanate (MDI), and 3,5-diethyltoluenediamine (DETDA). The result showed that thermal annealing caused the rise of the number of free urethane groups and the ordering of urea groups. The ordered urea hydrogen bonds were not destroyed below the melting point of the DETDA-MDI hard domain.