Liquid phase behavior of perfluoroalkylalkane surfactants

Pedro Morgado; Honggang Zhao; Felipe J. Blas; Clare McCabe; Luis Paulo N. Rebelo; Eduardo J. M. Filipe

doi:10.1021/jp063136d

Liquid phase behavior of perfluoroalkylalkane surfactants

Pedro Morgado, Honggang Zhao, Felipe J. Blas, Clare McCabe, Luis Paulo N. Rebelo, Eduardo J. M. Filipe^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

52 Citations (Scopus)

Abstract

We have performed a combined experimental and theoretical study of the thermodynamic properties of semifluorinated alkanes. In particular, the liquid density of perfluorohexylhexane (F6H6) and perfluorohexyloctane (F6H8) has been measured as a function of temperature from 273.15 to 353.15 K and at four temperatures as a function of pressure up to 600 bar. The results were interpreted using the SAFT-VR equation of state. The perfluoroalkylalkanes were modeled as heterosegmented diblock chains using parameters for the alkyl and perfluoroalkyl segments developed in earlier work. Through this simple approach, we are able to predict the thermodynamic behavior of the perfluoroalkylalkanes studied without fitting to any experimental data for the systems being studied.

Original language	English
Pages (from-to)	2856-2863
Number of pages	8
Journal	Journal of Physical Chemistry B
Volume	111
Issue number	11
DOIs	https://doi.org/10.1021/jp063136d
Publication status	Published - 1 Mar 2007

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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title = "Liquid phase behavior of perfluoroalkylalkane surfactants",

abstract = "We have performed a combined experimental and theoretical study of the thermodynamic properties of semifluorinated alkanes. In particular, the liquid density of perfluorohexylhexane (F6H6) and perfluorohexyloctane (F6H8) has been measured as a function of temperature from 273.15 to 353.15 K and at four temperatures as a function of pressure up to 600 bar. The results were interpreted using the SAFT-VR equation of state. The perfluoroalkylalkanes were modeled as heterosegmented diblock chains using parameters for the alkyl and perfluoroalkyl segments developed in earlier work. Through this simple approach, we are able to predict the thermodynamic behavior of the perfluoroalkylalkanes studied without fitting to any experimental data for the systems being studied.",

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TY - JOUR

T1 - Liquid phase behavior of perfluoroalkylalkane surfactants

AU - Morgado, Pedro

AU - Zhao, Honggang

AU - Blas, Felipe J.

AU - McCabe, Clare

AU - Rebelo, Luis Paulo N.

AU - Filipe, Eduardo J. M.

PY - 2007/3/1

Y1 - 2007/3/1

N2 - We have performed a combined experimental and theoretical study of the thermodynamic properties of semifluorinated alkanes. In particular, the liquid density of perfluorohexylhexane (F6H6) and perfluorohexyloctane (F6H8) has been measured as a function of temperature from 273.15 to 353.15 K and at four temperatures as a function of pressure up to 600 bar. The results were interpreted using the SAFT-VR equation of state. The perfluoroalkylalkanes were modeled as heterosegmented diblock chains using parameters for the alkyl and perfluoroalkyl segments developed in earlier work. Through this simple approach, we are able to predict the thermodynamic behavior of the perfluoroalkylalkanes studied without fitting to any experimental data for the systems being studied.

AB - We have performed a combined experimental and theoretical study of the thermodynamic properties of semifluorinated alkanes. In particular, the liquid density of perfluorohexylhexane (F6H6) and perfluorohexyloctane (F6H8) has been measured as a function of temperature from 273.15 to 353.15 K and at four temperatures as a function of pressure up to 600 bar. The results were interpreted using the SAFT-VR equation of state. The perfluoroalkylalkanes were modeled as heterosegmented diblock chains using parameters for the alkyl and perfluoroalkyl segments developed in earlier work. Through this simple approach, we are able to predict the thermodynamic behavior of the perfluoroalkylalkanes studied without fitting to any experimental data for the systems being studied.

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Liquid phase behavior of perfluoroalkylalkane surfactants

Abstract

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