ISIS Neutron and Muon Source Data Journal

Dynamic Surface excess concentration of pH-responsive chelating surfactants

Abstract: This study will examine a process of slow dynamic change in surface excess of a unique pH-responsive chelating surfactant at the air/liquid interface that occurs over a period of hours. Our earlier, preliminary studies of this phenomenon are focused on equilibrium conditions and to our knowledge, such slow equilibration processes has never been reported for surfactant systems before and the proposed study is therefore of fundamental importance. The specific surfactant is also of direct interest in cleaning contamination of heavy metals and mineral processing. Studying dynamics at the air/water interface is challenging and we need fast measurements: the INTER reflectometer is best suited for these experiments. The thickness of the surfactant layers also provides understanding of the changes at the air/liquid interface and that information is uniquely determined by reflection measurements.

Principal Investigator: Professor Håkan Edlund
Experimenter: Professor Magnus Norgren
Experimenter: Professor Adrian Rennie
Experimenter: Dr Ida Svanedal
Local Contact: Dr Maxmilian Skoda

DOI: 10.5286/ISIS.E.RB1510512

ISIS Experiment Number: RB1510512

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 Håkan Edlund et al; (2015): Dynamic Surface excess concentration of pH-responsive chelating surfactants, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1510512

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