Synthesis and electrical response of single-ion conducting network polymers based on sodium poly(tetraalkoxyaluminates)

Kate E. Doan; Mark A Ratner; D. F. Shriver

Synthesis and electrical response of single-ion conducting network polymers based on sodium poly(tetraalkoxyaluminates)

Kate E. Doan, Mark A Ratner, D. F. Shriver

Northwestern University

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

43 Citations (Scopus)

Abstract

Sodium ion conducting polyelectrolytes containing a network of tetraalkoxyaluminates linked by polyethers have been prepared by the reaction of NaAlH₂(OCH₂CH₂OCH₃)₂ with low molecular weight poly(ethylene glycols) (PEG(300), -(400), -(600), -(1000)). The conductivities of these electrolytes are comparable to those observed for complexes of sodium tetraalkoxyaluminate salts with poly(ethylene oxide)-based host polymers (ca. 10^-6 S cm^-1 at 60°C) indicating strong Na⁺-alkoxyaluminate ion pairing. A conductivity enhancement of 110-fold at 40°C is observed when the cation complexing agent cryptand [2.2.2] is added to the polyelectrolyte prepared from PEG(400). A similar conductivity enhancement was observed (140-fold at 40°C) when cryptand is added to salt complexes; the conductivity enhancement is likely due to a decrease in ion pairing in the electrolytes.

Original language	English
Pages (from-to)	418-423
Number of pages	6
Journal	Chemistry of Materials
Volume	3
Issue number	3
Publication status	Published - 1991

ASJC Scopus subject areas

Materials Chemistry
Materials Science(all)

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abstract = "Sodium ion conducting polyelectrolytes containing a network of tetraalkoxyaluminates linked by polyethers have been prepared by the reaction of NaAlH2(OCH2CH2OCH3)2 with low molecular weight poly(ethylene glycols) (PEG(300), -(400), -(600), -(1000)). The conductivities of these electrolytes are comparable to those observed for complexes of sodium tetraalkoxyaluminate salts with poly(ethylene oxide)-based host polymers (ca. 10-6 S cm-1 at 60°C) indicating strong Na+-alkoxyaluminate ion pairing. A conductivity enhancement of 110-fold at 40°C is observed when the cation complexing agent cryptand [2.2.2] is added to the polyelectrolyte prepared from PEG(400). A similar conductivity enhancement was observed (140-fold at 40°C) when cryptand is added to salt complexes; the conductivity enhancement is likely due to a decrease in ion pairing in the electrolytes.",

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T1 - Synthesis and electrical response of single-ion conducting network polymers based on sodium poly(tetraalkoxyaluminates)

AU - Doan, Kate E.

AU - Ratner, Mark A

AU - Shriver, D. F.

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N2 - Sodium ion conducting polyelectrolytes containing a network of tetraalkoxyaluminates linked by polyethers have been prepared by the reaction of NaAlH2(OCH2CH2OCH3)2 with low molecular weight poly(ethylene glycols) (PEG(300), -(400), -(600), -(1000)). The conductivities of these electrolytes are comparable to those observed for complexes of sodium tetraalkoxyaluminate salts with poly(ethylene oxide)-based host polymers (ca. 10-6 S cm-1 at 60°C) indicating strong Na+-alkoxyaluminate ion pairing. A conductivity enhancement of 110-fold at 40°C is observed when the cation complexing agent cryptand [2.2.2] is added to the polyelectrolyte prepared from PEG(400). A similar conductivity enhancement was observed (140-fold at 40°C) when cryptand is added to salt complexes; the conductivity enhancement is likely due to a decrease in ion pairing in the electrolytes.

AB - Sodium ion conducting polyelectrolytes containing a network of tetraalkoxyaluminates linked by polyethers have been prepared by the reaction of NaAlH2(OCH2CH2OCH3)2 with low molecular weight poly(ethylene glycols) (PEG(300), -(400), -(600), -(1000)). The conductivities of these electrolytes are comparable to those observed for complexes of sodium tetraalkoxyaluminate salts with poly(ethylene oxide)-based host polymers (ca. 10-6 S cm-1 at 60°C) indicating strong Na+-alkoxyaluminate ion pairing. A conductivity enhancement of 110-fold at 40°C is observed when the cation complexing agent cryptand [2.2.2] is added to the polyelectrolyte prepared from PEG(400). A similar conductivity enhancement was observed (140-fold at 40°C) when cryptand is added to salt complexes; the conductivity enhancement is likely due to a decrease in ion pairing in the electrolytes.

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