DISSOCIATED IONS AND ION ION INTERACTIONS IN POLY(ETHYLENE OXIDE) BASED NACF3SO3 COMPLEXES

被引：52

作者：

KAKIHANA, M ^{[1
]}

SCHANTZ, S ^{[1
]}

TORELL, LM ^{[1
]}

STEVENS, JR ^{[1
]}

机构：

[1] UNIV GUELPH,DEPT PHYS,GUELPH N1G 2W1,ONTARIO,CANADA

来源：

SOLID STATE IONICS | 1990年 / 40-1卷

关键词：

D O I：

10.1016/0167-2738(90)90087-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Raman scattering studies of molecular vibrations in poly(ethylene oxide) (PEO) containing NaCF3SO3 salt reveal the presence of both dissociated ions and ions in pair formations. For increasing salt concentration and temperature the degree of ion-pairing is found to increase at the expense of the amount of dissociated ions. At large salt content (O:M<10:1; O:M being the EO:Na concentration ratio) a second phase introduce bands in the spectra similar to that of crystalline NaCF3SO3. Increased ion-ion interaction may initiate the salt precipitation observed at elevated temperatures; the temperature dependence can be attributed to free volume dissimilarities of the host polymer and the dissociated salt. © 1990.

引用

页码：641 / 644

页数：4

共 12 条

[1] EFFECTS OF MOISTURE + HIGH ELECTRIC FIELDS ON CONDUCTIVITY IN ALKALI-HALIDE-DOPED CELLULOSE ACETATE [J].