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2021-05-17T10:28:58Z urn:hdl:10259/5767 Liquid-liquid equilibria for the systems 2-ethoxy-benzenamine + CH3(CH2) CH3 (n = 6,8,10,12) and 4-ethoxy-benzenamine + CH3(CH2) CH3 (n = 5,6) Alonso Tristán, Cristina González López, Juan Antonio García de la Fuente, Isaías Sanz, Luis Felipe Cobos, José Carlos . LLE Phenetidine Alkane Substituted anilines or phenols Intramolecular effects Liquid-liquid equilibria (LLE) phase diagrams have been determined for the systems: 2-ethoxy-benzenamine + octane, or +decane, or +dodecane, or +tetradecane and for 4-ethoxy-benzenamine + heptane, or +octane. The experimental method used is based on the observation, by mean of a laser scattering technique, of the turbidity produced on cooling when a second phase takes place. All the mixtures show an upper critical solution temperature, which increases with the alkane size. Dipolar interactions between like molecules become stronger in the sequence: 2-ethoxy-benzenamine < aniline < 4-ethoxy-benzenamine. Data available in the literature suggest that this relative variation is also valid for alkane mixtures containing other substituted anilines or phenols, characterized by having a second polar group. The dependence of the UCST values with the molecular structure of the polar aromatic compound involved is shortly discussed in terms of intramolecular and steric effects. 2021-05-17T10:28:58Z 2021-05-17T10:28:58Z 2019-01 info:eu-repo/semantics/article 0167-7322 http://hdl.handle.net/10259/5767 10.1016/j.molliq.2018.10.135 eng Journal of Molecular Liquids. 2019, V. 274, p. 534-539 https://doi.org/10.1016/j.molliq.2018.10.135 http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 Internacional Elsevier