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Poly(ethylene oxide)–LiX rubbery electrolytes with −X–X− disulfonamide anions having two or three ether groups in their structures

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Title: Poly(ethylene oxide)–LiX rubbery electrolytes with −X–X− disulfonamide anions having two or three ether groups in their structures
Authors: Lemaıtre-Auger, F.1, Prud'homme, J.
Source: Electrochimica Acta. Oct2002, Vol. 47 Issue 28, p4433. 8p.
Subjects: Polyethylene oxide, Electrolytes, Sulfonamides
Abstract: This work deals with poly(ethylene oxide), PEO–MX (M=Li, K and Cs) amorphous electrolytes with −X–X−, [CF3SO2NCH2(CH2OCH2)2CH2NSO2CF3]2− (EDSA) and [CF3SO2NCH2CH2(CH2OCH2)3CH2CH2NSO2CF3]2− (TTSA) disulfonamide anions. These dianions have X− end-groups identical to anions [CF3SO2N(CH2)2OCH3]− (MESA) and [CF3SO2N(CH2)3OCH3]− (MPSA), one of which (MPSA) was reported to yield chelate-like associated species (presumably LiX2− triplets) at concentrations above EO/Li=20 in PEO. This feature of LiMPSA, evidenced through glass transition temperature (Tg) measurements, does not apply to Li2EDSA and Li2TTSA. Though none of these lithium salts form crystalline intermediate compounds with PEO, the limit of solubility of LiMESA (EO/Li=16) does not allow a clarification of this point for this salt. At lower concentrations, however, a conductivity comparison with the potassium and caesium salts shows that the apparent degree of dissociation (α=CLi+/CLi) of LiMESA is comparable to that of LiMPSA. As opposed to both these salts and to some extent to Li2EDSA, a much greater dissociation takes place for Li2TTSA, the anion of which contains an inner, third ether group in its structure. [Copyright &y& Elsevier]
Copyright of Electrochimica Acta is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 7786237
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  Data: Poly(ethylene oxide)–LiX rubbery electrolytes with <superscript>−</superscript>X–X<superscript>−</superscript> disulfonamide anions having two or three ether groups in their structures
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  Data: <searchLink fieldCode="AR" term="%22Lemaıtre-Auger%2C+F%2E%22">Lemaıtre-Auger, F.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Prud'homme%2C+J%2E%22">Prud'homme, J.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Electrochimica+Acta%22">Electrochimica Acta</searchLink>. Oct2002, Vol. 47 Issue 28, p4433. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Polyethylene+oxide%22">Polyethylene oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Electrolytes%22">Electrolytes</searchLink><br /><searchLink fieldCode="DE" term="%22Sulfonamides%22">Sulfonamides</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: This work deals with poly(ethylene oxide), PEO–MX (M=Li, K and Cs) amorphous electrolytes with −X–X−, [CF3SO2NCH2(CH2OCH2)2CH2NSO2CF3]2− (EDSA) and [CF3SO2NCH2CH2(CH2OCH2)3CH2CH2NSO2CF3]2− (TTSA) disulfonamide anions. These dianions have X− end-groups identical to anions [CF3SO2N(CH2)2OCH3]− (MESA) and [CF3SO2N(CH2)3OCH3]− (MPSA), one of which (MPSA) was reported to yield chelate-like associated species (presumably LiX2− triplets) at concentrations above EO/Li=20 in PEO. This feature of LiMPSA, evidenced through glass transition temperature (Tg) measurements, does not apply to Li2EDSA and Li2TTSA. Though none of these lithium salts form crystalline intermediate compounds with PEO, the limit of solubility of LiMESA (EO/Li=16) does not allow a clarification of this point for this salt. At lower concentrations, however, a conductivity comparison with the potassium and caesium salts shows that the apparent degree of dissociation (α=CLi+/CLi) of LiMESA is comparable to that of LiMPSA. As opposed to both these salts and to some extent to Li2EDSA, a much greater dissociation takes place for Li2TTSA, the anion of which contains an inner, third ether group in its structure. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Electrochimica Acta is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 4433
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      – SubjectFull: Polyethylene oxide
        Type: general
      – SubjectFull: Electrolytes
        Type: general
      – SubjectFull: Sulfonamides
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      – TitleFull: Poly(ethylene oxide)–LiX rubbery electrolytes with −X–X− disulfonamide anions having two or three ether groups in their structures
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              Text: Oct2002
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              Y: 2002
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