Structural and macroscopic characterization of a gel phase of densely packed monodisperse, unilamellar vesicles
Article Abstract:
A very stiff gel phase has been discovered in the phase diagram of the surfactant system sodium oleate/octanol/water. The surfactant system, which was characterized by rheological measurements and electric conductivity, was investigated by freeze-fracture electron microscopy and small-angle neutron scattering. Analysis of the structures present in the surfactant system shows that unilamellar vesicles are formed upon the addition of octanol to the surfactant solution. Analysis also reveals that the monodisperse vesicles form a cubic-phase-like arrangement.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
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Novel nanotubes from a cationic surfactant and an anionic stiff aromatic counter-ion
Article Abstract:
Novel single-walled nanotubes composed of two different amphiphilic compounds, from a cationic surfactant, cetyltrimethylammoniumbromide (CTAB) and a negatively charged amphiphilic, 2-phenylbenzimidazole-5-sulfonic acid (PBSA) are described. The single-walled nanotubes (SWNTs) have an outer diameter of 13.5 nm and length of more than 10[mu]m and the wall of the NT seem to consist of a bilayer with a molar ratio of one of the two amphiphilic compounds.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Bistability in doped organic thin film transistors
Article Abstract:
A combination of spectroscopic data and device performance characteristics are used for studying the behavior of the organic thin film transistor (TFT) devices under a variety of controlled environmental test conditions. Raman spectroscopy has shown that the device switching behavior is because of the change in the poly(3,4-ethylenedioxythiophene):poly(styrene sulfonic acid) (PEDOT) doping level.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2007
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