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Micellization and adsorption of a series of fatty amide ethoxylates
YKI – Ytkemiska institutet.
YKI – Ytkemiska institutet.
2001 (English)In: Journal of Colloid and Interface Science, ISSN 0021-9797, E-ISSN 1095-7103, Vol. 242, p. 404-410Article in journal (Refereed)
Abstract [en]

An in-depth study of the adsorption and micellization behaviour of a series of fatty amide ethoxylates is presented. The effect of the amide bond is studied as well as variations in unsaturations in the hydrocarbon chain and in the length of the oxyethylene headgroup. Ellipsometry is used to determine adsorption on a hydrophobic silica plate while 1H-NMR self-diffusion is used to study micelle size and structure. The amide bond was found to increase the hydrophilicity of the surfactant leading to less favourable packing at the interface. The micelles formed by these surfactants were more compact, compared to alcohol ethoxylates with the same hydrophobe. Effects of unsaturations on the interfacial packing were not be observed. The micelle structure was somewhat affected by the unsaturations due to increased bulkiness of the surfactant hydrophobe.

Place, publisher, year, edition, pages
2001. Vol. 242, p. 404-410
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-26700OAI: oai:DiVA.org:ri-26700DiVA, id: diva2:1053703
Note
A1439Available from: 2016-12-08 Created: 2016-12-08 Last updated: 2017-11-29Bibliographically approved

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