Effect of plasticizers on ionic association and conductivity in the (PEO)(9)LiCF3SO3 system

被引：76

作者：

Chintapalli, S ^{[1
]}

Frech, R ^{[1
]}

机构：

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

来源：

MACROMOLECULES | 1996年 / 29卷 / 10期

关键词：

D O I：

10.1021/ma9515644

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Infrared spectroscopic studies of the effect of the plasticizers ethylene carbonate, tetraethylene glycol, and tetraethylene glycol dimethyl ether on the (PEO)(x)LiCF3SO3 system are reported. These data are augmented by measurements of the ionic conductivity. Relative concentrations of the various ionic species present have been determined as a function of plasticizer content. The plasticizers appear to preferentially interact with the crystalline PEO phase in the (PEO)(x)LiCF3SO3 complexes, although the relative amount of the compound (PEO)(3)LiCF3SO3 decreases with addition of plasticizer. The net Effect of the addition of plasticizer is to create ionically-conducting pathways of amorphous PEO containing dissolved ionic species.

引用

页码：3499 / 3506

页数：8

共 41 条

[1] THE INFRA-RED SPECTRA AND STRUCTURE OF ETHYLENE CARBONATE [J].