INFRARED SPECTROSCOPIC STUDY OF THE PHASES AND PHASE-TRANSITIONS IN POLY(ETHYLENE OXIDE) AND POLY(ETHYLENE OXIDE)-LITHIUM TRIFLUOROMETHANESULFONATE COMPLEXES

被引：173

作者：

DISSANAYAKE, MAKL ^{[1
]}

FRECH, R ^{[1
]}

机构：

[1] UNIV OKLAHOMA,DEPT CHEM & BIOCHEM,NORMAN,OK 73019

来源：

MACROMOLECULES | 1995年 / 28卷 / 15期

关键词：

D O I：

10.1021/ma00119a022

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 vibrational spectra of high molecular weight poly(ethylene oxide) and complexes of poly(ethylene oxide) with lithium trifluoromethanesulfonate at two different salt concentrations have been measured from 25 to 150 degrees C. Bands observed in the polymer-salt complexes can be assigned to either the pure crystalline poly(ethylene oxide) phase or a 3:1 polymer-salt compound. The temperature-dependent spectrum is interpreted in terms of the published phase diagram. Cation-anion association is observed at all temperatures. The degree of ionic association in the amorphous region appears to be higher than that observed in the crystalline compound.

引用

页码：5312 / 5319

页数：8

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