Applications of a Polysiloxane Having Five-Membered Cyclic Carbonate Groups to Solid Polymer Electrolytes

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  • 五員環カーボナート基をもつポリシロキサンの固体高分子電解質としての応用
  • ゴインカン カーボナートキ オ モツ ポリシロキサン ノ コタイ コウブンシ デンカイシツ ト シテ ノ オウヨウ

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Abstract

The title polysiloxane was prepared by polycondensation of 2-(1,3-dioxolan-2-only)ethyldimethoxymethylsilane. Ionic conductivity of the polymer was measured after addition of lithium trifluoromethanesulfonate (LiOTf) or lithium bis(trifluoromethanesulfonyl)imide (LiTFSI). In the case of LiOTf, the maximum value of ionic conductivity was reached when 2.0 equivalents of LiOTf per carbonate group were added, but the value was rather low (3.6 × 10−8 S/cm at 30°C). In the case of LiTFSI, on the other hand, the conductivity increased with the increase of LiTFSI amount, and it reached 7.7 × 10−5 S/cm at 30°C when 4.0 equivalents of LiTFSI were added.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 74 (6), 502-507, 2017

    The Society of Polymer Science, Japan

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