skip to main content
Idioma:

Ion Transport in Polymerized Ionic Liquid–Ionic Liquid Blends

Mogurampelly, Santosh ; Ganesan, Venkat

Macromolecules, 2018-12, Vol.51 (23), p.9471-9483 [Periódico revisado por pares]

American Chemical Society

Texto completo disponível

Citações Citado por
  • Título:
    Ion Transport in Polymerized Ionic Liquid–Ionic Liquid Blends
  • Autor: Mogurampelly, Santosh ; Ganesan, Venkat
  • É parte de: Macromolecules, 2018-12, Vol.51 (23), p.9471-9483
  • Descrição: We used atomistic molecular dynamics simulations to study ion mobilities and the molecular mechanisms of transport in blends of poly­(1-butyl-3-vinyl­imidazolium hexafluoro­phosphate) electrolytes with 1-butyl-3-methyl­imidazolium hexafluoro­phosphate ionic liquids. We characterized the structural and dynamical properties of the blend electrolyte systems through radial distribution functions, diffusivities, conductivities, and different time scales of relaxation and probed the correlations underlying such characteristics. Our results indicate that many features of ion transport in such blend systems mirror those observed in our earlier study of pure polymerized ionic liquids [Mogurampelly et al. J. Am. Chem. Soc. 2017, 139, 9511]. Explicitly, we observe that the anions associated with the polymerized cation move along the polymer backbone via the formation and breakup of ion pairs involving polymerized cationic monomers of different polymer chains. Interestingly, for all blend systems excepting pure polymeric ionic liquids, the anion mobilities were seen to be correlated to the ion-pair relaxation times of the free cation–anion pairs. Both the transference numbers and the deviations from the Nernst–Einstein conductivities exhibited minimal variations when examined as a function of the blend compositions. However, as a result of the influence of mobile cations, an optimal blending composition achieves the highest conductivities at a temperature normalized by the glass transition temperature.
  • Editor: American Chemical Society
  • Idioma: Inglês
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.