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Nanoscale segregation in room temperature ionic liquids.
This study provides the first experimental evidence of the existence of nanoscale heterogeneities in neat liquid and supercooled RTILs, such as 1-alkyl-3-methyl imidazolium-based salts, using X-ray diffraction, showing a behavior that resembles the density one only below the glass transition, thus suggesting a complex behavior above this temperature.
Quasielastic neutron scattering characterization of the relaxation processes in a room temperature ionic liquid
We report the first quasielastic neutron scattering measurements on a room temperature ionic liquid: 1-n-butyl-3-methylimidazolium hexafluorophosphate, [bmim][PF6]. Data were collected using a medium
Mesoscopic Structural Heterogeneities in Room-Temperature Ionic Liquids
Ionic liquids represent an exciting novel class of materials with potentially enormous applicative impact; they are proposed as environmentally responsible replacements for the noxious volatile
Morphology and intermolecular dynamics of 1-Alkyl-3-methylimidazolium bis{(trifluoromethane)sulfonyl}amide ionic liquids: Structural and dynamic evidence of nanoscale segregation
Here we report on the structural and dynamical properties of a series of room temperature ionic liquids, namely 1-alkyl-3-methylimidazolium bis{(trifluoromethane)sulfonyl}amide ([Cnmim][NTf2]), with
Local Dynamics of Polyethylene and Its Oligomers: A Molecular Dynamics Interpretation of the Incoherent Dynamic Structure Factor
We present a detailed study of the local dynamics of short polyethylene (PE) chains using molecular dynamics (MD) simulations and quasi-elastic neutron scattering (QENS) data. QENS measurements were
Alkylimidazolium based ionic liquids: impact of cation symmetry on their nanoscale structural organization.
The gathered data indicate that both asymmetric and symmetric members are characterized by the occurrence of a distinct degree of mesoscopic structural organization above a given threshold in the side alkyl chain length, regardless of the cation symmetry.
Nanoscale organization in piperidinium-based room temperature ionic liquids.
Here we report on the complex nature of the phase diagram of N-alkyl-N-methylpiperidinium bis(trifluoromethanesulfonyl)imide ionic liquids using several complementary techniques and on their
Effect of cation symmetry and alkyl chain length on the structure and intermolecular dynamics of 1,3-dialkylimidazolium bis(trifluoromethanesulfonyl)amide ionic liquids.
The results suggest that the local structure of RTILs with symmetric cations is more solid-like than that of RTils with asymmetric cation, within the context of the nanoscale heterogeneities ofRTILs.
Emerging Evidences of Mesoscopic-Scale Complexity in Neat Ionic Liquids and Their Mixtures.
New arising research directions that point to an enhanced level of structural complexity in several IL-based systems, including mixtures are highlighted, which have the potential to further expand their range of applications.