Synthesis and Properties of a New Ionic Liquid Which Jellyfies at Room Conditions

  1. Cabeza, Oscar 1
  2. Vila, Juan
  3. Segade, Luisa
  4. Tojo, Emilia
  5. Rilo, Esther
  6. Varela, Luis
  7. Vilas, Miguel
  8. López-Lago, Elena
  1. 1 Universidade da Coruña
    info

    Universidade da Coruña

    La Coruña, España

    ROR https://ror.org/01qckj285

  2. 2 Universidade de Santiago de Compostela
    info

    Universidade de Santiago de Compostela

    Santiago de Compostela, España

    ROR https://ror.org/030eybx10

  3. 3 Universidade de Vigo
    info

    Universidade de Vigo

    Vigo, España

    ROR https://ror.org/05rdf8595

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Actas:
Proceedings of The 18th International Electronic Conference on Synthetic Organic Chemistry

ISBN: 978-3-906980-55-3

Ano de publicación: 2015

Tipo: Achega congreso

DOI: 10.3390/ECSOC-18-F001 WoS: WOS:000725553200007 GOOGLE SCHOLAR lock_openMINERVA editor

Resumo

In this communication the synthesis and physical properties of the new ionic liquid 1-ethyl-3-methyl imidazolium decyl sulfate, are shown. The interest of this new salt lies in its tendency to jellify when it is exposed to the atmosphere by absorbing water from moisture up to about a 10% of its own mass; then it keeps the mass ±2% stable depending on the atmospheric humidity grade. The rigid-gel state appears from 15 ºC to 60 ºC. Below 15 ºC it crystallizes and above 60 ºC it liquefies. According to TGA measurements the compound is stable up to 300ºC. 1-ethyl-3-methyl imidazolium decyl sulfate was prepared in two steps. First the alkylation of 1-methylimidazole with diethyl sulfate afforded 1-ethyl-3-methylimidazolium ethyl sulfate. Then a later trans-esterification reaction allowed obtaining the desired 1-ethyl-3-methyl imidazolium decyl sulfate with high yield and purity. Its structure was confirmed by 1H, 13C NMR and IR spectroscopy as well as Mass Spectrometry. The FTIR spectrum of this new compound, and the temperature behavior of some physical properties such as electrical conductivity, viscosity, density and refractive index, will be presented

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Información de financiamento

We want to thank to the UDC technician M. Cabanas for some of the great quality measurements he performed. This work was supported by the Direccion Xeral para I+D+i of the Xunta de Galicia (Grants No 10-PXIB-103-294 PR, 10-PXIB-206-294 PR, PGIDIT04BTF301031PR, REGALIS: CN 2012/120, CN 2012/156, and by the Ministerio de Economia y Competitividad of Spain (DPI2012-38841-C02-02). All research projects have been co financed with the European Regional Development Fund (FEDER) funds.

Financiadores

  • Direccion Xeral para I+D+i of the Xunta de Galicia
    • 10-PXIB-103-294 PR
    • 10-PXIB-206-294
    • PGIDIT04BTF301031PR
    • CN 2012/120
    • CN 2012/156
  • Ministerio de Economia y Competitividad of Spain
    • DPI2012-38841-C02-02
  • European Regional Development Fund (FEDER) funds