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Formation of Lyotropic Liquid Crystals at the Graphite/Aqueous Solution Interface
Author(s) -
FitzGerald P. A.,
Warr G. G.
Publication year - 2001
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(200107)13:12/13<967::aid-adma967>3.0.co;2-w
Subject(s) - graphite , materials science , lyotropic liquid crystal , aqueous solution , micelle , lyotropic , pulmonary surfactant , cleavage (geology) , chemical engineering , nanotechnology , crystallography , liquid crystal , organic chemistry , composite material , liquid crystalline , optoelectronics , chemistry , fracture (geology) , engineering
The self‐assembly of quaternary ammonium salt surfactants on the cleavage plane of graphite has been investigated by direct imaging using AFM and force curves. It is shown that the graphite surface orients the first adsorbate layer into stripes of hemicylindrical micelles (see Figure for a schematic picture). From there, a hexagonal array of cylindrical liquid crystal stripes builds up at higher surfactant concentration.