Adsorption and aggregation properties of heterogemini surfactants containing a quaternary ammonium salt and a sugar moiety

Kanae Nyuta, Tomokazu Yoshimura, Koji Tsuchiya, Takahiro Ohkubo, Hideki Sakai, Masahiko Abe, Kunio Esumi

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

A novel heterogemini surfactant comprising two hydrocarbon chains and two different hydrophilic groups such as a quaternary ammonium cation and gluconamide nonion N,N-dimethyl-N-[2-(N′-alkyl-N′-gluconamide)ethyl] -1-alkylammonium bromides (2CnAmGlu, where n represents hydrocarbon chain lengths of 8, 10, 12, and 14) was synthesized by reacting N,N-dimethylethylenediamine with alkyl bromide, followed by a reaction with 1,5-D(+)-gluconolactone. The adsorption properties of 2CnAmGlu were characterized by surface tension measurements made using the Wilhelmy plate method, and their aggregation properties were investigated by dynamic light scattering and cryogenic transmission electron microscopy techniques. The relationship between the hydrocarbon chain length and the logarithm of the critical micelle concentration (cmc) for 2CnAmGlu exhibited a linear decrease when the chain length was increased up to 12 and then a departure from linearity at n = 14. The surface tension reached 24-26 mN m-1 at each cmc, indicating high efficiency in lowering the surface tension of water. Furthermore, it was found that the structure of the aggregate formed for 2C nAmGlu in solution was influenced by the hydrocarbon chain length; that is, for n = 10 and 12, micelles with a hydrodynamic radius of 2-5 nm were formed, whereas vesicles were also observed for n = 14.

Original languageEnglish
Pages (from-to)9187-9191
Number of pages5
JournalLangmuir
Volume22
Issue number22
DOIs
Publication statusPublished - Oct 24 2006
Externally publishedYes

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sugars
Hydrocarbons
Chain length
Ammonium Compounds
Surface-Active Agents
Sugars
Surface active agents
Agglomeration
Salts
hydrocarbons
surfactants
salts
Surface tension
Adsorption
micelles
interfacial tension
adsorption
Critical micelle concentration
Bromides
bromides

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Cite this

Adsorption and aggregation properties of heterogemini surfactants containing a quaternary ammonium salt and a sugar moiety. / Nyuta, Kanae; Yoshimura, Tomokazu; Tsuchiya, Koji; Ohkubo, Takahiro; Sakai, Hideki; Abe, Masahiko; Esumi, Kunio.

In: Langmuir, Vol. 22, No. 22, 24.10.2006, p. 9187-9191.

Research output: Contribution to journalArticle

Nyuta, Kanae ; Yoshimura, Tomokazu ; Tsuchiya, Koji ; Ohkubo, Takahiro ; Sakai, Hideki ; Abe, Masahiko ; Esumi, Kunio. / Adsorption and aggregation properties of heterogemini surfactants containing a quaternary ammonium salt and a sugar moiety. In: Langmuir. 2006 ; Vol. 22, No. 22. pp. 9187-9191.
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