Volume 63, Number 6, September 2003
|Page(s)||902 - 907|
|Section||Interdisciplinary physics and related areas of science and technology|
|Published online||01 November 2003|
Effect of surfactant structure on interfacial properties
Department of Chemistry, Norwegian University of Science and Technology N-7491 Trondheim, Norway
2 Department of Chemical Engineering, University of Amsterdam Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
Corresponding author: firstname.lastname@example.org
Accepted: 11 July 2003
We study surfactants at the oil/water interface using Dissipative Particle Dynamics simulations at constant . The interfacial tension depends on the surfactant branching in a subtle way. For a given interfacial concentration, a double-tail surfactant is more efficient than its single-tail isomer only if the oil-head repulsion is sufficiently strong. For a given concentration in the bulk water phase, the single-tail surfactants are more efficient in both cases. We interpret these results in light of the molecular packing at the interface and free-energy considerations.
PACS: 82.70.Uv – Surfactants, micellar solutions, vesicles, lamellae, amphiphilic systems (hydrophilic and hydrophobic interactions) / 68.05.-n – Liquid-liquid interfaces
© EDP Sciences, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.