Confinement induced change of microemulsion phase structure in controlled pore glass (CPG) monoliths

Dahl M, Gommes CJ, Haverkamp R, Wood K, Prévost S, Schröer P, Omasta T, Stank TJ, Hellweg T, Wellert S (2024)
RSC Advances 14(39): 28272-28284.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Dahl, Margarethe; Gommes, Cedric J.; Haverkamp, RenéUniBi; Wood, Kathleen; Prévost, Sylvain; Schröer, Pierre; Omasta, Tomáš; Stank, Tim JulianUniBi; Hellweg, ThomasUniBi ; Wellert, Stefan
Abstract / Bemerkung
We use small-angle neutron scattering (SANS) to investigate the structure and phase behavior of a complex fluid within meso- and macroporous matrices. Specifically, bicontinuous microemulsions of the temperature-dependent ternary system C10E4–water–n-octane are investigated in controlled pore glass (CPG) membranes with nominal pore diameters of 10 nm, 20 nm, 50 nm, and 100 nm. The scattering data were analyzed using the Teubner–Strey model and a multiphase generalization of clipped Gaussian-field models. The analysis indicates changes in the phase structure of the bicontinuous microemulsion in the membranes with the smallest pores. This is attributed to a shift in the ternary phase diagram toward a three-phase structure at lower surfactant concentrations. This effect is likely related to a larger internal surface area in the membranes with smaller pores, which enhances surfactant adsorption onto the pore walls.
Erscheinungsjahr
2024
Zeitschriftentitel
RSC Advances
Band
14
Ausgabe
39
Seite(n)
28272-28284
eISSN
2046-2069
Page URI
https://pub.uni-bielefeld.de/record/2992332

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Dahl M, Gommes CJ, Haverkamp R, et al. Confinement induced change of microemulsion phase structure in controlled pore glass (CPG) monoliths. RSC Advances. 2024;14(39):28272-28284.
Dahl, M., Gommes, C. J., Haverkamp, R., Wood, K., Prévost, S., Schröer, P., Omasta, T., et al. (2024). Confinement induced change of microemulsion phase structure in controlled pore glass (CPG) monoliths. RSC Advances, 14(39), 28272-28284. https://doi.org/10.1039/D4RA04090B
Dahl, Margarethe, Gommes, Cedric J., Haverkamp, René, Wood, Kathleen, Prévost, Sylvain, Schröer, Pierre, Omasta, Tomáš, Stank, Tim Julian, Hellweg, Thomas, and Wellert, Stefan. 2024. “Confinement induced change of microemulsion phase structure in controlled pore glass (CPG) monoliths”. RSC Advances 14 (39): 28272-28284.
Dahl, M., Gommes, C. J., Haverkamp, R., Wood, K., Prévost, S., Schröer, P., Omasta, T., Stank, T. J., Hellweg, T., and Wellert, S. (2024). Confinement induced change of microemulsion phase structure in controlled pore glass (CPG) monoliths. RSC Advances 14, 28272-28284.
Dahl, M., et al., 2024. Confinement induced change of microemulsion phase structure in controlled pore glass (CPG) monoliths. RSC Advances, 14(39), p 28272-28284.
M. Dahl, et al., “Confinement induced change of microemulsion phase structure in controlled pore glass (CPG) monoliths”, RSC Advances, vol. 14, 2024, pp. 28272-28284.
Dahl, M., Gommes, C.J., Haverkamp, R., Wood, K., Prévost, S., Schröer, P., Omasta, T., Stank, T.J., Hellweg, T., Wellert, S.: Confinement induced change of microemulsion phase structure in controlled pore glass (CPG) monoliths. RSC Advances. 14, 28272-28284 (2024).
Dahl, Margarethe, Gommes, Cedric J., Haverkamp, René, Wood, Kathleen, Prévost, Sylvain, Schröer, Pierre, Omasta, Tomáš, Stank, Tim Julian, Hellweg, Thomas, and Wellert, Stefan. “Confinement induced change of microemulsion phase structure in controlled pore glass (CPG) monoliths”. RSC Advances 14.39 (2024): 28272-28284.
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