Alkyl-substituted N-vinylimidazolium polymerized ionic liquids: Thermal properties and ionic conductivities

Matthew D. Green, David Salas-De La Cruz, Yuesheng Ye, John M. Layman, Yossef A. Elabd, Karen I. Winey, Timothy Edward Long*

*この研究の対応する著者

研究成果: Article査読

126 被引用数 (Scopus)

抄録

Structure-property relationships for polymerized ionic liquids (PILs) relate chemical structure to ionic conductivity and reveal the importance of glass transition temperature (Tg) and the energy associated with an ion-hopping mechanism for ion conduction for a series of alkyl-substituted vinylimidazolium PILs. The alkyl-substituted vinylimidazolium-based PILs with varying lengths of n-alkyl substituents provide diverse precursors with exchangeable anions to further enhance thermal stability and ionic conductivity. As the anion size increases, regardless of alkyl substituent length, T g decreases and the onset of weight loss, TD, increases. As the length of the alkyl substituent increases, Tg decreases for PILs with Br- and BF4- counteranions. Ionic conductivity increases over an order of magnitude upon exchange of the counteranion from TfO- < Tf2N-.

本文言語English
ページ(範囲)2522-2528
ページ数7
ジャーナルMacromolecular Chemistry and Physics
212
23
DOI
出版ステータスPublished - 2011 12月 1
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 物理化学および理論化学
  • ポリマーおよびプラスチック
  • 有機化学
  • 材料化学

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