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The 1-monooleoyl-rac-glycerol/n-octyl-beta-D-glucoside/water system: Phase diagram and phase structures determined by NMR and X-ray diffraction
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.
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2003 (English)In: Langmuir, ISSN 0743-7463, Vol. 19, no 14, 5813-5822 p.Article in journal (Refereed) Published
Abstract [en]

Using SAXD and NMR techniques as well as visual observations, a detailed study of the extension of the phase regions and their structures has been performed for the ternary system 1-monooleoyl-rac-glycerol (MO)/n-octyl-β-d-glucopyranoside (OG)/2H2O at 25 °C. OG in water forms a large region of a micellar solution phase, in which substantial amounts of MO can be dissolved. Increasing the MO concentration at constant water content results in the formation of two- and three-phase areas, consisting of liquid, lamellar, or cubic phases in equilibrium with a very dilute water/OG solution. Besides the different phases previously reported for the binary systems, an additional hexagonal phase occurs at high OG contents. Addition of minor amounts (≈1.5 wt %) of OG converts the cubic phases present in the MO/2H2O system to an Lα phase, while the cubic phase in the OG/2H2O system is able to dissolve as much as 15 wt % MO. Since a major part of the phase diagram consists of planar bilayers, it is concluded that for most MO/OG ratios the spontaneous curvature is close to zero. The reason for this is discussed in terms of the molecular packing of MO and OG.

Place, publisher, year, edition, pages
2003. Vol. 19, no 14, 5813-5822 p.
Keyword [sv]
surfaktanter, x-ray, NMR
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:miun:diva-4637DOI: 10.1021/la034492fISI: 000183994400035Scopus ID: 2-s2.0-0037703382Local ID: 606OAI: oai:DiVA.org:miun-4637DiVA: diva2:29669
Available from: 2008-09-30 Created: 2008-09-30 Last updated: 2016-10-24Bibliographically approved

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Persson, GerdEdlund, Håkan
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CiteExportLink to record
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Citation style
  • apa
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  • ieee
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  • vancouver
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