ISIS Neutron and Muon Source Data Journal

Temperature- and pH-dependent interaction between an alkyl ethoxylate surfactant and an acid azo dye

Abstract: Alkyl ethoxylate surfactants (AEOs) are widely used due to their mildness and low toxicity. In aqueous solution, AEOs usually show a lower critical solution temperature (LCST). AEOs are nonionic and therefore not very sensitive to changes in pH or ionic strength. However, a pH-responsivity can be introduced by adding an acidic solute, rendering the system responsive to two triggers: Temperature and pH. Both parameters affect the mechanism of solubilization of the solute (e.g. dye molecules) and therefore its interaction with substrates (e.g. textiles, hair fibers). We will investigate the morphology of dye/AEO co-assemblies to understand the mechanism of dye solubilisation and its response to changes in temperature and pH. This will aid the targeted design of more efficient dyeing-systems.

Principal Investigator: Dr Ralf SCHWEINS
Local Contact: Dr Sarah Rogers
Experimenter: Miss Wenke MUELLER
Experimenter: Professor Klaus Huber
Experimenter: Miss Larissa dos Santos Silva Araujo

DOI: 10.5286/ISIS.E.RB2220479

ISIS Experiment Number: RB2220479

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:
Dr Ralf SCHWEINS et al; (2022): Temperature- and pH-dependent interaction between an alkyl ethoxylate surfactant and an acid azo dye, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2220479

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