Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Adsorption of n-decyl-β-D-glucopyranoside and n-decyl-β-D-maltopyranoside mixtures at the liquid-vapor interface
YKI – Ytkemiska institutet.
YKI – Ytkemiska institutet.
YKI – Ytkemiska institutet.
2003 (English)In: Langmuir, ISSN 0743-7463, E-ISSN 1520-5827, Vol. 19, 6110-6114 p.Article in journal (Refereed)
Abstract [en]

Surface tension isotherms were recorded for mixtures of n-decyl-β-D-glucopyranoside (Glu) and n-decyl-β-D-maltopyranoside (Mal) and for the pure components. By use of conventional surface thermodynamics, the adsorbed amounts of Glu and Mal were calculated for different compositions and overall concentrations. The critical micelle concentrations (cmc's) of the pure components and the mixtures were between 2 and 2.2 mM. It was found that the molecule with the smaller headgroup, Glu, packs more tightly at the liqud-vapor interface at cmc, 37.5 Å2/molecule as compared to 48.1 Å2/molecule for Mal. The transition from a two-dimensional ideal solution state to a liquid-expanded state was investigated in detail. This transition occurs from an area/molecule of ~450-550 to ~150-200 Å2/molecule and at very low values of the surface pressure, ~1 mN/m. For a 1:1 mixture of Mal and Glu, an excess of the larger molecule, Mal, was found at the interface in a small concentration interval just after the ideal Henry's law region. At higher concentrations Glu adsorbs more readily, and at the cmc Glu occupies 73% of the interface. The observed adsorption behavior, surface pressure behavior, and the relative amounts of the two surfactants at the interface for the different mixtures are indicative of a hard disk behavior of the two sugar headgroups.

Place, publisher, year, edition, pages
2003. Vol. 19, 6110-6114 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-27188OAI: oai:DiVA.org:ri-27188DiVA: diva2:1054192
Note
A1638Available from: 2016-12-08 Created: 2016-12-08Bibliographically approved

Open Access in DiVA

No full text

By organisation
YKI – Ytkemiska institutet
In the same journal
Langmuir
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

Total: 6 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
v. 2.26.0