Solution behavior of perfluoroalkanes and perfluoroalkylalkane surfactants in n-octane

Pedro Morgado; Rogério Tomás; Honggang Zhao; M. Carolina Dos Ramos; Felipe J. Blas; Clare McCabe; Eduardo J.M. Filipe

doi:10.1021/jp073758e

Solution behavior of perfluoroalkanes and perfluoroalkylalkane surfactants in n-octane

Pedro Morgado, Rogério Tomás, Honggang Zhao, M. Carolina Dos Ramos, Felipe J. Blas, Clare McCabe, Eduardo J.M. Filipe^*

^*Corresponding author for this work

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

34 Citations (Scopus)

Abstract

Apparent molal volumes of a number of n-perfluoroalkanes (PA) and perfluoroalkylalkanes (PFAA) in n-octane have been measured at 298.15 K as a function of composition. The corresponding partial molal volumes at infinite dilution have been obtained by extrapolating the apparent molal volumes to zero composition. The results were interpreted using the hetero-SAFT-VR equation of state. The perfluoroalkylalkanes were modeled as heterosegmented diblock chains, and the cross interactions, both intra- and intermolecular, were characterized using parameters developed in earlier studies of alkane + perfluoroalkane mixtures. Through this strategy, a fully predictive approach has been developed that is able to accurately predict the volumetric behavior of the solutions of perfluoroalkylalkanes studied, without fitting to any experimental data for perfluoroalkylalkanes.

Original language	English
Pages (from-to)	15962-15968
Number of pages	7
Journal	Journal of Physical Chemistry C
Volume	111
Issue number	43
DOIs	https://doi.org/10.1021/jp073758e
Publication status	Published - 1 Nov 2007

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Energy
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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title = "Solution behavior of perfluoroalkanes and perfluoroalkylalkane surfactants in n-octane",

abstract = "Apparent molal volumes of a number of n-perfluoroalkanes (PA) and perfluoroalkylalkanes (PFAA) in n-octane have been measured at 298.15 K as a function of composition. The corresponding partial molal volumes at infinite dilution have been obtained by extrapolating the apparent molal volumes to zero composition. The results were interpreted using the hetero-SAFT-VR equation of state. The perfluoroalkylalkanes were modeled as heterosegmented diblock chains, and the cross interactions, both intra- and intermolecular, were characterized using parameters developed in earlier studies of alkane + perfluoroalkane mixtures. Through this strategy, a fully predictive approach has been developed that is able to accurately predict the volumetric behavior of the solutions of perfluoroalkylalkanes studied, without fitting to any experimental data for perfluoroalkylalkanes.",

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T1 - Solution behavior of perfluoroalkanes and perfluoroalkylalkane surfactants in n-octane

AU - Morgado, Pedro

AU - Tomás, Rogério

AU - Zhao, Honggang

AU - Carolina Dos Ramos, M.

AU - Blas, Felipe J.

AU - McCabe, Clare

AU - Filipe, Eduardo J.M.

PY - 2007/11/1

Y1 - 2007/11/1

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AB - Apparent molal volumes of a number of n-perfluoroalkanes (PA) and perfluoroalkylalkanes (PFAA) in n-octane have been measured at 298.15 K as a function of composition. The corresponding partial molal volumes at infinite dilution have been obtained by extrapolating the apparent molal volumes to zero composition. The results were interpreted using the hetero-SAFT-VR equation of state. The perfluoroalkylalkanes were modeled as heterosegmented diblock chains, and the cross interactions, both intra- and intermolecular, were characterized using parameters developed in earlier studies of alkane + perfluoroalkane mixtures. Through this strategy, a fully predictive approach has been developed that is able to accurately predict the volumetric behavior of the solutions of perfluoroalkylalkanes studied, without fitting to any experimental data for perfluoroalkylalkanes.

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Solution behavior of perfluoroalkanes and perfluoroalkylalkane surfactants in n-octane

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