2026-05-30T08:59:33Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/57672024-11-05T10:56:27Zcom_10259_4393com_10259_5086com_10259_2604col_10259_4394
Repositorio Institucional de la Universidad de Burgos
author
Alonso Tristán, Cristina
author
González López, Juan Antonio
author
García de la Fuente, Isaías
author
Sanz, Luis Felipe
author
Cobos, José Carlos .
2021-05-17T10:28:58Z
2021-05-17T10:28:58Z
2019-01
0167-7322
http://hdl.handle.net/10259/5767
10.1016/j.molliq.2018.10.135
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.
eng
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
LLE
Phenetidine
Alkane
Substituted anilines or phenols
Intramolecular effects
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)
info:eu-repo/semantics/article
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URL
https://riubu.ubu.es/bitstream/10259/5767/1/Alonso-jml_2019.pdf
File
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1636213
application/pdf
Alonso-jml_2019.pdf