Monolayers and Thin Films
Investigation on Solvent Casting Films of Surfactant-Encapsulated Clusters

https://doi.org/10.1006/jcis.2002.8380Get rights and content

Abstract

The surfactant-encapsulated cluster (SEC) composed of a hydrophobic dimethyl dioctadecyl ammonium (DODA) shell and an encapsulated hydrophilic polyoxoanion core can form casting films. The structure of the casting film is influenced by evaporation rates of organic solvent. When the casting films are prepared by slow evaporation of chloroform, the alkyl chains are considered to possess a partial interdigitation, and the interdigitated length is 1.6 nm. The casting film structure is characterized by scanning force microscopy (SFM), Fourier transformation infrared (FT-IR), wide-angle X-ray diffraction, and differential scanning calorimetry (DSC).

References (26)

  • J. Umemura et al.

    Biochim. Biophys. Acta

    (1980)
  • M. Vandevyver et al.

    J. Colloid Interface Sci.

    (1982)
  • J.H. Fendler et al.

    Adv. Mater.

    (1995)
  • V. Luca et al.

    Chem. Mater.

    (1997)
  • M. Chemente-León et al.

    Langmuir

    (1997)
  • M. Chemente-León et al.

    Angew. Chem. Int. Ed. Engl.

    (1997)
  • M. Chemente-León et al.

    Thin Solid Films

    (1998)
  • E. Coronado et al.

    Adv. Mater.

    (1999)
  • C. Mingotaud et al.

    Langmuir

    (1999)
  • N. Kimizuka et al.

    Angew. Chem. Int. Ed. Engl.

    (2000)
  • N. Kimizuka et al.

    Inorg. Chem.

    (2000)
  • D.G. Kurth et al.

    Proc. Natl. Ac. Sci.

    (2000)
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