Here we report on the temperature dependence of the density and refractive index of alkyl-sulfate room temperature ionic liquids (RTIL): 1-ethyl-3-methylimidazolium n-alkyl-sulfate, [C2mim][C nOSO3] (n = 2, 4, 6, 8). Moreover an X-ray scattering structural study on the salts' morphology is presented, highlighting the existence of nano-scale structural heterogeneities, whose size depends linearly on the anion alkyl chain length. This behaviour was observed in other RTILs and is related to nano-scale alkyl chains' segregation into a charged network. This study shows differences between alkyl-sulfate salts and other RTILs, providing new indication for further tuning the RTILs' properties by wise modification of chemical architecture. © 2010 Elsevier B.V. All rights reserved.

Selected chemical-physical properties and structural heterogeneities in 1-ethyl-3-methylimidazolium alkyl-sulfate room temperature ionic liquids / Russina, Olga; Gontrani, Lorenzo; Barbara, Fazio; Domenico, Lombardo; Alessandro, Triolo; Caminiti, Ruggero. - In: CHEMICAL PHYSICS LETTERS. - ISSN 0009-2614. - 493:4-6(2010), pp. 259-262. [10.1016/j.cplett.2010.05.042]

Selected chemical-physical properties and structural heterogeneities in 1-ethyl-3-methylimidazolium alkyl-sulfate room temperature ionic liquids

RUSSINA, OLGA;GONTRANI, Lorenzo;CAMINITI, Ruggero
2010

Abstract

Here we report on the temperature dependence of the density and refractive index of alkyl-sulfate room temperature ionic liquids (RTIL): 1-ethyl-3-methylimidazolium n-alkyl-sulfate, [C2mim][C nOSO3] (n = 2, 4, 6, 8). Moreover an X-ray scattering structural study on the salts' morphology is presented, highlighting the existence of nano-scale structural heterogeneities, whose size depends linearly on the anion alkyl chain length. This behaviour was observed in other RTILs and is related to nano-scale alkyl chains' segregation into a charged network. This study shows differences between alkyl-sulfate salts and other RTILs, providing new indication for further tuning the RTILs' properties by wise modification of chemical architecture. © 2010 Elsevier B.V. All rights reserved.
2010
clean technology; x-ray diffraction; solvents; edxd
01 Pubblicazione su rivista::01a Articolo in rivista
Selected chemical-physical properties and structural heterogeneities in 1-ethyl-3-methylimidazolium alkyl-sulfate room temperature ionic liquids / Russina, Olga; Gontrani, Lorenzo; Barbara, Fazio; Domenico, Lombardo; Alessandro, Triolo; Caminiti, Ruggero. - In: CHEMICAL PHYSICS LETTERS. - ISSN 0009-2614. - 493:4-6(2010), pp. 259-262. [10.1016/j.cplett.2010.05.042]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/365455
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