Semifluorinated chains at the air/water interface: studies of the interaction of a semifluorinated alkane with fluorinated alcohols in mixed langmuir monolayers

Langmuir : the ACS Journal of Surfaces and Colloids
Marcin Broniatowski, Patrycja Dynarowicz-Łatka

Abstract

Mixtures of a semifluorinated alkane 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10-henicosafluorotriacontane (abbr. F10H20) and different alcohols were investigated at the air/water interface using surface pressure-area isotherms complemented with BAM images. In our studies, octadecanol and its fluorinated derivatives differing in the degree of fluorination were researched. To verify the influence of an iso branching of the fluorinated segment in an alcohol molecule, the properties of perfluorooctyldecanol and perfluoro-iso-nonyldecanol in mixtures with F10H20 were compared. From the isotherms datapoints, the excess of free energy of mixing (DeltaG(exc)) together with the interaction parameter (alpha) were calculated. On the basis of the additivity rule and BAM images, phase diagrams for all of the investigated systems were constructed. It occurs that F10H20 mixes with the fully hydrogenated alcohol, octadecanol, within the whole range of alcohol mole fractions, whereas it is completely immiscible with its perfluorinated analogue. Regarding the mixtures of F10H20 with semifluorinated alcohols, it turned out that these systems exhibit limited miscibility, i.e., are miscible at a low semifluorinated alcohol proportion, whereas upon...Continue Reading

References

Feb 15, 1997·Journal of Colloid and Interface Science·G Capuzzi Lo Nostro P
Jun 13, 2002·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·A El AbedO Abillon
Apr 20, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Mounir MaaloumMarie Pierre Krafft
Jul 19, 2005·Colloids and Surfaces. B, Biointerfaces·Hans-Joachim Lehmler, Paul M Bummer
Dec 1, 1948·Journal of the American Chemical Society·W M HESTONC P SMYTH

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Citations

May 29, 2012·Journal of Colloid and Interface Science·Ala'a F Eftaiha, Matthew F Paige
Mar 17, 2010·Journal of Colloid and Interface Science·Marcin BroniatowskiEulogia Muñoz
Jun 10, 2009·Journal of Colloid and Interface Science·Hiromichi NakaharaOsamu Shibata
Jun 2, 2007·Journal of Colloid and Interface Science·Marcin BroniatowskiPatrycja Dynarowicz-Łatka
Dec 18, 2007·Advances in Colloid and Interface Science·Marcin Broniatowski, Patrycja Dynarowicz-Łatka
Aug 7, 2019·Colloids and Surfaces. B, Biointerfaces·Hiromichi NakaharaOsamu Shibata
Jul 1, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Shatha E QaqishMatthew F Paige
Oct 31, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Li ZhangXinping Wang

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