COMPLEXATION OF POLY(ETHYLENE OXIDE) AND UREA

被引：19

作者：

BOGDANOV, BG ^{[1
]}

MICHAILOV, M ^{[1
]}

UZOV, CV ^{[1
]}

GAVRAILOVA, GG ^{[1
]}

机构：

[1] BULGARIAN ACAD SCI,INST POLYMER,BU-1040 SOFIA,BULGARIA

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 1994年 / 32卷 / 02期

关键词：

POLY(ETHYLENE OXIDE); UREA; MOLECULAR COMPLEX; INFRARED SPECTROSCOPY;

D O I：

10.1002/polb.1994.090320222

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 complexation of ultrahigh-molecular-weight poly(ethylene oxide) (PEG) with urea in both the solid and molten states was studied by infrared spectroscopy. Information about the temperature dependences of the absorption bands in the 3600-2600 and 1300-600 cm(-1) region on heating and cooling was obtained. Some conclusions concerning the interaction between PEO and urea were also made. The formation of a high temperature, metastable molecular complex between PEO and urea, which is susceptible to undercooling, was confirmed spectroscopically. Heating to 85-90 degrees C resulted in a molecular complex stable at room temperature. (C) 1994 John Wiley and Sons, Inc.

引用

页码：387 / 394

页数：8

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