THE STRUCTURE OF ASSOCIATED IONIC SPECIES IN POLY(PROPYLENE OXIDE) ALKALI-METAL TRIFLUOROMETHANESULFONATE COMPLEXES

被引：71

作者：

MANNING, J ^{[1
]}

FRECH, R ^{[1
]}

机构：

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

来源：

POLYMER | 1992年 / 33卷 / 16期

关键词：

ION-CONDUCTING POLYMER; POLYMER SALT COMPLEX; IONIC ASSOCIATION; IR SPECTROSCOPY; RAMAN SPECTROSCOPY;

D O I：

10.1016/0032-3861(92)91108-E

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

This paper presents the results of Raman scattering and i.r. transmission investigations of poly(propylene oxide) (M(w)BAR = approximately 3000) complexed with various concentrations of lithium, sodium and potassium trifluoromethanesulphonate. Analysis of the i.r. and polarized Raman spectra of the SO3 stretching region. in conjunction with complementary data from other spectral regions, suggests the existence of three associated ionic species: two differently co-ordinated ion pairs and a triple ion. It is argued that the free ions which were previously postulated to exist in these polymer-salt complexes are really cation-anion pairs weakly interacting through the CF3 end of the anion.

引用

页码：3487 / 3494

页数：8

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