ISIS Neutron and Muon Source Data Journal

Multilayering of Isostearic Methyl Ester Sulphonate at the Air-Aqueous Interface: Effect of Molecular Branching

Abstract: Surfactants usually form a single layer of molecules at the surface of water. We have shown that under certain conditions more than one layer may form. in which case the system seems to become a powerful wetting agent (it will wet Teflon). A whole range of useful technological properties would follow from this, e.g. more effective detergency, and since the phenomenon seems to be associated with more charged ions such as calcium and aluminium, hard water would enhance detergency in contrast to the usual reduction. An added advantage would be to do this with renewable surfactants. The methyl ester sulphonates are renewables from palm oil and we have shown that the C14 methyl ester has a rich multilayer surface phase diagram with aluminium. The C18 (isostearate) is also renewable, it will be much more surface active, and its branched structure should bring extra variety to the multilayer

Principal Investigator: Dr Bob Thomas
Experimenter: Dr Yao Chen
Experimenter: Mr KE FA
Local Contact: Dr Rebecca Welbourn
Experimenter: Dr Steve Roberts
Experimenter: Professor Jordan Petkov
Experimenter: Professor Jeffery Penfold
Experimenter: Dr Peixun Li
Experimenter: Dr Hui Xu
Local Contact: Dr Mario Campana
Experimenter: Dr Kun Ma

DOI: 10.5286/ISIS.E.RB1720129

ISIS Experiment Number: RB1720129

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

Data Citation

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

For Example:
Dr Bob Thomas et al; (2017): Multilayering of Isostearic Methyl Ester Sulphonate at the Air-Aqueous Interface: Effect of Molecular Branching, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1720129

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