Micelle-vesicle transition of oleyldimethylamine oxide in water

Masahiko Miyahara, Hideya Kawasaki, Vasil M. Garamus, Norio Nemoto, Rie Kakehashi, Shimon Tanaka, Annaka Masahiko, Hiroshi Maeda

研究成果: ジャーナルへの寄稿記事

10 引用 (Scopus)

抄録

We studied the effects of the degree of ionization(α) and the surfactant concentration (C d) on the micelle-vesicle transition in salt-free oleyldimethylamine oxide (OlDMAO) aqueous solutions by the dynamic light scattering (DLS), the hydrogen ion titration, the small angle neutron scattering (SANS), the electrophoretic light scattering (ELS) and viscoelastic measurements. From the study of ionization effects, the micelle-vesicle transition was recognized as a change of aggregate size by the DLS measurement; however, the micelle-vesicle transition was not detected both in the ELS measurement and the hydrogen ion titration, suggesting that the electric properties of the worm-like micelles and the vesicles are very similar despite a large difference of shapes between them. From the results of the SANS, the DLS and the viscosity measurements, it was suggested that a concentration-dependent micelle-vesicle transition took place around C p = 10 mmol kg -1 for the solutions at α = 0.5. In the concentration-range 10 mmol kg -1 < C d < 150 mmol kg -1, the micelles and the vesicles coexisted. In the concentration region (C d = 10-50 mmol kg -1), the vesicle size increased with the surfactant concentration.

元の言語英語
ページ(範囲)131-138
ページ数8
ジャーナルColloids and Surfaces B: Biointerfaces
38
発行部数3-4 SPEC. ISS.
DOI
出版物ステータス出版済み - 11 15 2004

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Micelles
Oxides
micelles
light scattering
oxides
Water
Dynamic light scattering
Small Angle Scattering
water
Neutrons
hydrogen ions
Neutron scattering
Titration
Surface-Active Agents
titration
Light scattering
Ionization
Protons
neutron scattering
Surface active agents

All Science Journal Classification (ASJC) codes

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

これを引用

Miyahara, M., Kawasaki, H., Garamus, V. M., Nemoto, N., Kakehashi, R., Tanaka, S., ... Maeda, H. (2004). Micelle-vesicle transition of oleyldimethylamine oxide in water. Colloids and Surfaces B: Biointerfaces, 38(3-4 SPEC. ISS.), 131-138. https://doi.org/10.1016/j.colsurfb.2004.04.011

Micelle-vesicle transition of oleyldimethylamine oxide in water. / Miyahara, Masahiko; Kawasaki, Hideya; Garamus, Vasil M.; Nemoto, Norio; Kakehashi, Rie; Tanaka, Shimon; Masahiko, Annaka; Maeda, Hiroshi.

:: Colloids and Surfaces B: Biointerfaces, 巻 38, 番号 3-4 SPEC. ISS., 15.11.2004, p. 131-138.

研究成果: ジャーナルへの寄稿記事

Miyahara, M, Kawasaki, H, Garamus, VM, Nemoto, N, Kakehashi, R, Tanaka, S, Masahiko, A & Maeda, H 2004, 'Micelle-vesicle transition of oleyldimethylamine oxide in water', Colloids and Surfaces B: Biointerfaces, 巻. 38, 番号 3-4 SPEC. ISS., pp. 131-138. https://doi.org/10.1016/j.colsurfb.2004.04.011
Miyahara M, Kawasaki H, Garamus VM, Nemoto N, Kakehashi R, Tanaka S その他. Micelle-vesicle transition of oleyldimethylamine oxide in water. Colloids and Surfaces B: Biointerfaces. 2004 11 15;38(3-4 SPEC. ISS.):131-138. https://doi.org/10.1016/j.colsurfb.2004.04.011
Miyahara, Masahiko ; Kawasaki, Hideya ; Garamus, Vasil M. ; Nemoto, Norio ; Kakehashi, Rie ; Tanaka, Shimon ; Masahiko, Annaka ; Maeda, Hiroshi. / Micelle-vesicle transition of oleyldimethylamine oxide in water. :: Colloids and Surfaces B: Biointerfaces. 2004 ; 巻 38, 番号 3-4 SPEC. ISS. pp. 131-138.
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