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    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/64586

    Título
    Thermodynamics of 2-alkanol + polar organic solvent mixtures. I. Systems with ketones, ethers or organic carbonates
    Autor
    González López, Juan Antonio MarianoAutoridad UVA Orcid
    Hevia de los Mozos, Luis FernandoAutoridad UVA Orcid
    Sanz, Luis Felipe
    Lozano Martín, DanielAutoridad UVA Orcid
    García de la Fuente, Isaías LaudelinoAutoridad UVA Orcid
    Año del Documento
    2023
    Editorial
    Elsevier
    Descripción
    Producción Científica
    Documento Fuente
    Journal of Molecular Liquids, 2023, vol. 385, 122319
    Résumé
    The mixtures 2-propanol or 2-butanol + n-alkanone, or + acetophenone, or + linear monoether, or + cyclic ether, or + linear organic carbonate, or + propylene carbonate have been investigated using thermodynamic data, and in terms of the Flory theory, and the Kirkwood-Buff integrals. The data considered are: excess molar enthalpies (), volumes, entropies, and the temperature dependence of. The enthalpy of the 2-alkanol-solvent interactions have been determined, and the different contributions to discussed. It is shown that values of the 2-alkanol (fixed) + n-alkanone, or + linear carbonate mixtures change in the same manner that for n-alkanone, or linear carbonate + n-alkane (fixed) systems. In contrast, values of 2-alkanol (fixed) + linear monoether or + n-alkane mixtures change similarly. This set of results suggests that solvent–solvent interactions are determinant in systems with n-alkanone or linear carbonate, while interactions between alcohol molecules are determinant in mixtures with linear monoethers. According to the Flory model, orientational effects in systems with a given 2-alkanol become weaker in the sequence: linear monoether > linear organic carbonate > n-alkanone, and are stronger in solutions with a cyclic monoether than in those with cyclic diethers, and in systems with acetophenone or propylene carbonate than in the mixtures with the corresponding linear solvents. Results obtained from the Kirkwood-Buff integrals are consistent with these findings. The application of Flory model reveals that orientational effects are similar in systems with 1- or 2-alkanols, with the exception of solutions with linear monoethers, where such effects are stronger in mixtures containing 1-alkanols. For the examined systems, the formalism of the Kirkwood-Buff integrals makes no meaningful distinction between solutions with 1-alkanols or 2-alkanols.
    Materias (normalizadas)
    Thermodynamics
    Polimeros y polimerización
    Materias Unesco
    22 Física
    Palabras Clave
    2-alkanol
    Polar solvent
    Thermodynamic data
    ISSN
    0167-7322
    Revisión por pares
    SI
    DOI
    10.1016/j.molliq.2023.122319
    Version del Editor
    https://www.sciencedirect.com/science/article/pii/S0167732223011236?via%3Dihub
    Propietario de los Derechos
    © 2023 The Authors
    Idioma
    eng
    URI
    https://uvadoc.uva.es/handle/10324/64586
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
    Aparece en las colecciones
    • DEP31 - Artículos de revista [166]
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    Fichier(s) constituant ce document
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    J. Mol. Liq. 385 (2023) 122319.pdf
    Tamaño:
    1.056Mo
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    Attribution-NonCommercial-NoDerivatives 4.0 InternacionalExcepté là où spécifié autrement, la license de ce document est décrite en tant que Attribution-NonCommercial-NoDerivatives 4.0 Internacional

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