SEGMENTED CO-POLYETHERS WITH URETHANE AND UREA OR SEMI-CARBAZIDE LINKS FOR BLOOD-CIRCULATION SYSTEMS .2. INFRARED-SPECTROSCOPIC INVESTIGATIONS

被引：32

作者：

HUMMEL, DO

ELLINGHORST, G

KHATCHATRYAN, A

STENZENBERGER, HD

机构：

[1] Institut für Physikalische Chemie, Universität zu Köln, Köln, D-5000

来源：

ANGEWANDTE MAKROMOLEKULARE CHEMIE | 1979年 / 82卷 / NOV期

关键词：

D O I：

10.1002/apmc.1979.050820110

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The infrared spectra of urethane‐, urea‐, and semicarbazide‐linked aliphatic polyethers (poly(oxyethylene), poly(oxytetramethylene) and poly(oxypropylene)) have been measured at 300 K and 153 K. The assignment of the different structural units to certain groups of absorption bands (“characteristic band combinations”) was made by the evaluation of the spectra of reference compounds and of literature data. The low‐temperature effects (band splitting, shift of band maxima) facilitate the identification of structural units in these polymers. The observed effects do not signify crystallinity but beginning regularity of the poly(oxyethylene) and poly(oxytetramethylene) sequences. © 1979 Hüthig & Wepf Verlag, Basel

引用

页码：129 / 148

页数：20

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