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Structural features and surfactant properties of core–shell type micellar aggregates formed by gemini piperidinium surfactants

Bhadani, Avinash ; Okano, Tomoaki ; Ogura, Taku ; Misono, Takeshi ; Sakai, Kenichi ; Abe, Masahiko ; Sakai, Hideki

Colloids and surfaces. A, Physicochemical and engineering aspects, 2016-04, Vol.494, p.147-155 [Periódico revisado por pares]

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  • Título:
    Structural features and surfactant properties of core–shell type micellar aggregates formed by gemini piperidinium surfactants
  • Autor: Bhadani, Avinash ; Okano, Tomoaki ; Ogura, Taku ; Misono, Takeshi ; Sakai, Kenichi ; Abe, Masahiko ; Sakai, Hideki
  • Assuntos: Aggregates ; Aqueous solutions ; Fourier transformation ; Micelles ; Small angle X ray scattering ; Spacers ; Surfactants ; Thermodynamic properties
  • É parte de: Colloids and surfaces. A, Physicochemical and engineering aspects, 2016-04, Vol.494, p.147-155
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Aqueous micellar solution of piperidinium gemini surfactants was investigated by small angle X-ray scattering (SAXS) and the real space structural information of the micelles was deduced by indirect Fourier transformation (IFT) method. The maximum dimension of the micelles and their shape were determined by evaluating the pair distance distribution function (PDDF) and the electron density profile of the aqueous surfactant solution. These gemini surfactants formed core-shell type micelles in the aqueous solution above their cmc values having ellipsoidal structure. The dilute aqueous solutions of these surfactants were further investigated to determine their surfactant properties by surface tension and conductivity method. The self-aggregation and thermodynamic properties as well as the shape, size and internal structure of the micelles formed by these surfactants were found to be dependent on the methylene spacer units and hydrophobic alkyl chain length of the gemini surfactants.
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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