Compound formation and ionic association in the poly(ethylene oxide)-potassium triflate system

被引：27

作者：

Chintapalli, S

Quinton, C

Frech, R

Vincent, CA

机构：

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

[2] ECOLE NATL SUPER CHIM CLERMONT FERRAND,F-63174 AUBIERE,FRANCE

[3] UNIV ST ANDREWS,SCH CHEM,ST ANDREWS KY16 9ST,FIFE,SCOTLAND

来源：

MACROMOLECULES | 1997年 / 30卷 / 24期

关键词：

D O I：

10.1021/ma9705376

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Results of a spectroscopic study in the high molecular weight PEO-potassium triflate system indicates the presence of a crystalline compound with a 1:1 stoichiometry, (PEO)KCF3SO3, which has also been confirmed with X-ray diffraction and DSC studies. The presence of the compound leads to a decrease in ionic conductivity at very high salt concentrations. Ionic association of potassium triflate in glymes and glycols as a function of salt concentration was also studied using infrared spectroscopy, with particular attention to the effect of chain length and end group on the ionic association.

引用

页码：7472 / 7477

页数：6

共 29 条

[1] Ab initio solution of a complex crystal structure from powder-diffraction data using simulated-annealing method and a high degree of molecular flexibility [J].