Characterization studies on high molecular weight PEO-ammonium triflate complexes

被引：28

作者：

Chintapalli, S ^{[1
]}

Zea, C ^{[1
]}

Frech, R ^{[1
]}

机构：

[1] UNIV OKLAHOMA,NORMAN,OK 73019

来源：

SOLID STATE IONICS | 1996年 / 92卷 / 3-4期

关键词：

poly(ethylene oxide); ammonium triflate; infrared; Raman; spectroscopy;

D O I：

10.1016/S0167-2738(96)00473-0

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：

The results of a spectroscopic and thermal study of high molecular weight (PEO)(n)NH4SO3CF3 (n = 1-80) complexes are presented. Infrared spectroscopy shows a shift and splitting of the N-H stretching mode at high salt concentrations, indicating the interaction of NH4+ ions with the ether oxygen atoms of the polymer backbone. Combined spectroscopic and differential scanning calorimetric (DSC) studies confirm previously reported compound formation at ether oxygen:cation ratios of 8:1 and 4:1. These studies also indicate the formation of a 1:1 compound. The ionic conductivity of the 1:1 compound shows unusual temperature-dependent behavior, suggestive of a X-transition.

引用

页码：205 / 212

页数：8

共 23 条

[1] CONDUCTIVITY AND DIELECTRIC-CONSTANT OF THE POLYMERIC SOLID ELECTROLYTE, (PEO)8NH4SO3CF3, IN THE 100-HZ TO 10(10)-HZ RANGE [J].