ISIS Neutron and Muon Source Data Journal

Determination of kinetics of adsorption and layer thickness of lamellar gel surfactant films deposited onto silica

Abstract: The phase behaviour of aqueous surfactant systems and in particular the transition between a gel (Lb) and liquid crystalline (La) phase can be influenced by some low molecular weight additives. We have developed surfactant formulations which self-assemble into a lamellar phase in water, that can be switch between the Lb phase and the La phase not only depending on the temperature, but also by including water-soluble additives. The effect of deposition of these lamellar structures can be monitored, and the adsorbed amount, refractive index and layer thickness have been determined using ellipsometry, but only after dilution and removing aggregates from the solution. The present study aims to take advantage of neutrons and monitor the deposition of deuterated DODAC mixtures and thus study the adsorption processes onto the silica surface.

Principal Investigator: Professor Yeng Ming Lam
Experimenter: Dr Rui Goncalves Cardoso
Experimenter: Professor Tommy Nylander
Local Contact: Dr Maxmilian Skoda

DOI: 10.5286/ISIS.E.RB1920690

ISIS Experiment Number: RB1920690

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Yeng Ming Lam et al; (2019): Determination of kinetics of adsorption and layer thickness of lamellar gel surfactant films deposited onto silica, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1920690

Data is released under the CC-BY-4.0 license.