Adsorption and micellization behavior of novel gluconamide-type gemini surfactants

Kenichi Sakai, Shin Umezawa, Mamoru Tamura, Yuichiro Takamatsu, Koji Tsuchiya, Kanjiro Torigoe, Takahiro Ohkubo, Tomokazu Yoshimura, Kunio Esumi, Hideki Sakai, Masahiko Abe

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

The adsorption and micellization behavior of novel sugar-based gemini surfactants (N, N-dialkyl-N, N-digluconamide ethylenediamine, Glu(n)-2-Glu(n), where n is the hydrocarbon chain length of 8, 10 and 12) has been studied on the basis of static/dynamic surface tension, fluorescence, dynamic light scattering (DLS) and cryogenic transmission electron microscope (cryo-TEM) data. The static surface tension of the aqueous Glu(n)-2-Glu(n) solutions measured at the critical micelle concentration (cmc) is observed to be significantly lower than that of the corresponding monomeric surfactants. This suggests that the gemini surfactants, newly synthesized in the current study, are able to form a closely packed monolayer film at the air/aqueous solution interface. The greater ability in the molecular association is supported by the remarkably (approximately 100-200 times) lower cmc of the gemini surfactants compared with the corresponding monomeric ones. With a combination of the fluorescence and DLS data, a structural transformation of the Glu(n)-2-Glu(n) micelles is suggested to occur with an increase in the concentration. The cryo-TEM measurements clearly confirm the formation of worm-like micelles of Glu(12)-2-Glu(12) at the concentration well above the cmc.

Original languageEnglish
Pages (from-to)440-448
Number of pages9
JournalJournal of Colloid and Interface Science
Volume318
Issue number2
DOIs
Publication statusPublished - Feb 15 2008
Externally publishedYes

Fingerprint

Micellization
Surface-Active Agents
Critical micelle concentration
micelles
Surface active agents
surfactants
Adsorption
ethylenediamine
adsorption
Micelles
Dynamic light scattering
Cryogenics
Surface tension
Electron microscopes
Fluorescence
cryogenics
interfacial tension
light scattering
electron microscopes
Hydrocarbons

Keywords

  • Adsorption
  • Sugar-based gemini surfactants
  • Surface tension
  • Worm-like micelles

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry
  • Surfaces and Interfaces

Cite this

Sakai, K., Umezawa, S., Tamura, M., Takamatsu, Y., Tsuchiya, K., Torigoe, K., ... Abe, M. (2008). Adsorption and micellization behavior of novel gluconamide-type gemini surfactants. Journal of Colloid and Interface Science, 318(2), 440-448. https://doi.org/10.1016/j.jcis.2007.10.039

Adsorption and micellization behavior of novel gluconamide-type gemini surfactants. / Sakai, Kenichi; Umezawa, Shin; Tamura, Mamoru; Takamatsu, Yuichiro; Tsuchiya, Koji; Torigoe, Kanjiro; Ohkubo, Takahiro; Yoshimura, Tomokazu; Esumi, Kunio; Sakai, Hideki; Abe, Masahiko.

In: Journal of Colloid and Interface Science, Vol. 318, No. 2, 15.02.2008, p. 440-448.

Research output: Contribution to journalArticle

Sakai, K, Umezawa, S, Tamura, M, Takamatsu, Y, Tsuchiya, K, Torigoe, K, Ohkubo, T, Yoshimura, T, Esumi, K, Sakai, H & Abe, M 2008, 'Adsorption and micellization behavior of novel gluconamide-type gemini surfactants', Journal of Colloid and Interface Science, vol. 318, no. 2, pp. 440-448. https://doi.org/10.1016/j.jcis.2007.10.039
Sakai, Kenichi ; Umezawa, Shin ; Tamura, Mamoru ; Takamatsu, Yuichiro ; Tsuchiya, Koji ; Torigoe, Kanjiro ; Ohkubo, Takahiro ; Yoshimura, Tomokazu ; Esumi, Kunio ; Sakai, Hideki ; Abe, Masahiko. / Adsorption and micellization behavior of novel gluconamide-type gemini surfactants. In: Journal of Colloid and Interface Science. 2008 ; Vol. 318, No. 2. pp. 440-448.
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