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Binary Phase Equilibria of Three alfa-Methylsubstituted Sodium Alkanoate Surfactant Systems.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.ORCID iD: 0000-0002-5543-2041
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
Responsible organisation
2003 (English)In: Journal of Colloid and Interface Science, ISSN 0021-9797, Vol. 257, no 2, 333-336 p.Article in journal (Refereed) Published
Abstract [en]

In this work, we continue our study of methyl -substituted surfactants and present the aqueous binary phase diagrams of racemic sodium 2-methyloctanoate, -nonanoate, and -dodecanoate, respectively. All systems have very low Krafft temperatures within the solution phase, between 1 and 4 degreesC. The phase sequences of the two shorter surfactants are very similar to those of the unsubstituted sodium octanoate, although with somewhat different range of existence for the phases formed. The sodium 2-methyldodecanoate system is different from the unsubstituted sodium dodecanoate system, as the former seems to lack a hexagonal phase. The surfactant systems were delineated using H-2 NMR splittings and crossed polarizers, and combined with SAXS for determination of phase structure. 

Place, publisher, year, edition, pages
2003. Vol. 257, no 2, 333-336 p.
Keyword [sv]
surfaktanter
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:miun:diva-1840DOI: 10.1016/S0021-9797(02)00038-3ISI: 000180947700020PubMedID: 16256488Scopus ID: 0037440367Local ID: 604OAI: oai:DiVA.org:miun-1840DiVA: diva2:26872
Available from: 2008-09-30 Created: 2008-09-30 Last updated: 2016-09-29Bibliographically approved

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Bydén Sjöbom, MalinHedenström, ErikEdlund, Håkan
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CiteExportLink to record
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