Ionic conductivity in the poly(ethylene malonate)/lithium triflate system

Yi Chia Lee; Mark A. Ratner; Duward F. Shriver

doi:10.1016/S0167-2738(00)00791-8

Ionic conductivity in the poly(ethylene malonate)/lithium triflate system

Yi Chia Lee, Mark A. Ratner, Duward F. Shriver

Northwestern University

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

A series of polymer salt complexes based on poly(ethylene malonate) and lithium triflate were prepared with polymer repeat unit to cation ratios of 8, 4, 2, 1. These were characterized and then mixed with lithium triflate. The C = O stretching peaks in the IR spectra of these polymers became broad when salt was introduced, indicating complex formation between the polymer and the lithium cation. Pure poly(ethylene malonate) has a glass transition at 258 K and the glass transition temperature increases with increasing salt concentration. The maximum room temperature ionic conductivity for this polymer/salt complex is 1.6×10^-6 S/cm for a polymer repeat unit to cation ratio of 8, and the temperature dependence of the conductivity follows the Vogel-Tammann-Fulcher (VTF) equation.

Original language	English
Pages (from-to)	273-276
Number of pages	4
Journal	Solid State Ionics
Volume	138
Issue number	3-4
DOIs	https://doi.org/10.1016/S0167-2738(00)00791-8
Publication status	Published - Jan 1 2001

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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abstract = "A series of polymer salt complexes based on poly(ethylene malonate) and lithium triflate were prepared with polymer repeat unit to cation ratios of 8, 4, 2, 1. These were characterized and then mixed with lithium triflate. The C = O stretching peaks in the IR spectra of these polymers became broad when salt was introduced, indicating complex formation between the polymer and the lithium cation. Pure poly(ethylene malonate) has a glass transition at 258 K and the glass transition temperature increases with increasing salt concentration. The maximum room temperature ionic conductivity for this polymer/salt complex is 1.6×10-6 S/cm for a polymer repeat unit to cation ratio of 8, and the temperature dependence of the conductivity follows the Vogel-Tammann-Fulcher (VTF) equation.",

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