Morphological transformations in solid domains of alkanes on surfactant solutions

Hiroki Matsubara, Tetsumasa Takaichi, Takanori Takiue, Makoto Aratono, Aya Toyoda, Kenichi Iimura, Philip A. Ash, Colin D. Bain

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Alkanes on surfactant solutions can form three distinct phases at the air-solution interface, a liquid phase (L), a solid monolayer phase (S 1), and a hybrid bilayer phase (S2). Phase coexistence between any two, or all three, of these phases has been observed by Brewster angle microscopy of tetradecane, hexadecane, and their mixtures on solutions of tetradecyltrimethylammonium bromide. The morphologies of the domains depend on the competition between line tension and electrostatic interactions, which are essentially different depending on the pair of phases in contact. Domains of S1 in the L phase are long and thin; however, long, thin domains of L in an S1 phase are not stable but break up into a string of small circular domains. The bilayer S2 domains are always circular, owing to the dominance of line tension on the morphology.

Original languageEnglish
Pages (from-to)844-848
Number of pages5
JournalJournal of Physical Chemistry Letters
Volume4
Issue number6
DOIs
Publication statusPublished - Mar 21 2013

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Alkanes
Surface-Active Agents
Paraffins
alkanes
Surface active agents
surfactants
Coulomb interactions
Monolayers
Microscopic examination
Brewster angle
Liquids
bromides
Air
liquid phases
strings
electrostatics
microscopy
air
interactions

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Morphological transformations in solid domains of alkanes on surfactant solutions. / Matsubara, Hiroki; Takaichi, Tetsumasa; Takiue, Takanori; Aratono, Makoto; Toyoda, Aya; Iimura, Kenichi; Ash, Philip A.; Bain, Colin D.

In: Journal of Physical Chemistry Letters, Vol. 4, No. 6, 21.03.2013, p. 844-848.

Research output: Contribution to journalArticle

Matsubara, Hiroki ; Takaichi, Tetsumasa ; Takiue, Takanori ; Aratono, Makoto ; Toyoda, Aya ; Iimura, Kenichi ; Ash, Philip A. ; Bain, Colin D. / Morphological transformations in solid domains of alkanes on surfactant solutions. In: Journal of Physical Chemistry Letters. 2013 ; Vol. 4, No. 6. pp. 844-848.
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