Monolayers of rod-shaped and disc-shaped liquid crystalline compounds at the air-water interface

  • Calamitic (rod-shaped) and discotic (disc-shaped) thermotropic liquid crystalline (LC) compounds were spread at the air-water interface, and their ability to form monolayers was studied. The calamitic LCs investigated were found to form monolayers which behave analogously to conventional amphiphiles such as fatty acids. The spreading of the discotic LCs produced monolayers as well, but with a behaviour different from classical amphiphiles. The areas occupied per molecule are too small to allow the contact of all hydrophilic groups with the water surface and the packing of all hydrophobic chains. Various molecular arrangements of the discotics at the water surface to fit the spreading data are discussed.

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Author:O. Albrecht, W. Cumming, W. Kreuder, André Laschewsky, Helmut Ringsdorf
Series (Serial Number):Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe (paper 079)
Document Type:Postprint
Year of Completion:1986
Publishing Institution:Universität Potsdam
Release Date:2008/09/17
Tag:Monolayers; discotics; liquid crystals
Source:Colloid & Polymer Science. - 264 (1986), 8, pp. 659-667. - ISSN (print) 0303-402X , ISSN (online) 1435-1536
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie
Extern / Extern
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften
Licence (German):License LogoKeine Nutzungslizenz vergeben - es gilt das deutsche Urheberrecht
Notes extern:
The original publication is available at
Colloid & Polymer Science. - 264 (1986), 8, pp. 659-667
ISSN (print) 0303-402X
ISSN (online) 1435-1536
DOI 10.1007/BF01469526