AffiliationUniversity of Chester, University of Bristol
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AbstractThis article analyzes how the individual structural elements of surfactant molecules affect surface properties, in particular, the point of reference defined by the limiting surface tension at the aqueous cmc, γcmc. Particular emphasis is given to how the chemical nature and structure of the hydrophobic tails influence γcmc. By comparing the three different classes of surfactants, fluorocarbon, silicone, and hydrocarbon, a generalized surface packing index is introduced which is independent of the chemical nature of the surfactants. This parameter ϕcmc represents the volume fraction of surfactant chain fragments in a surface film at the aqueous cmc. It is shown that ϕcmc is a useful index for understanding the limiting surface tension of surfactants and can be useful for designing new superefficient surfactants.
CitationCzajka, A., Hazell, G. & Eastoe, J. (2015). Surfactants at the design limit. Langmuir, 31(30), 8205-8217.
PublisherAmerican Chemical Society
DescriptionThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Langmuir, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.langmuir.5b00336
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc-nd/4.0/