Interplay between surfactant self-assembly and adsorption at hydrophobic surfaces: insights from dissipative particle dynamics.

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F21%3A00545827" target="_blank" >RIV/67985858:_____/21:00545827 - isvavai.cz</a>
Alternative codes found
RIV/44555601:13440/21:43896485
Result on the web
<a href="http://hdl.handle.net/11104/0322472" target="_blank" >http://hdl.handle.net/11104/0322472</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/00268976.2020.1857863" target="_blank" >10.1080/00268976.2020.1857863</a>

Result language
angličtina
Original language name
Interplay between surfactant self-assembly and adsorption at hydrophobic surfaces: insights from dissipative particle dynamics.
Original language description
We study the self-organisation of aqueous surfactants in bulk phase, and the adsorption and selforganisation of the aqueous surfactants at a planar hydrophobic surface by dissipative particle dynamics. Nonionic surfactants, n-alkyl poly(ethylene oxide) CnEm, and water are coarse-grained into mesoscopic beads comprising 1–3 heavy atoms and two water molecules, respectively. The size of the mesoscopic beads is related to the molar volume of the underlying molecular fragments while the bead–bead interaction parameters are calibrated against the water-octanol partition coefficients.nWefocus on theC6E3, C6E4, C8E3, andC8E4 surfactants in water that form spherical micelles in the bulk. The bulk micellization is primarily affected by the alkyl tail length which is demonstrated by an order of magnitude decrease in the critical micelle concentration when going from the aqueous C6Em to aqueous C8Em solutions. Surfactants strongly adsorb on the hydrophobic surface, adopting lying-down configurations and forming hemispheres which are in equilibrium with the spherical micelles in the bulk. In contrast to the bulk phase, the surfactant adsorption behaviour is influenced by both the alkyl tail and head chain lengths.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10403 - Physical chemistry

Project
<a href="/en/project/EF17_048%2F0007411" target="_blank" >EF17_048/0007411: UniQSurf - Centre of biointerfaces and hybrid functional materials</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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