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  4. Columnar liquid crystalline phases through hydrogen bonding and nanoscale segregation
 
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2004
Journal Article
Title

Columnar liquid crystalline phases through hydrogen bonding and nanoscale segregation

Abstract
Two columnar phases forming 2,4,6-triarylamino-1,3,5-triazines have been investigated in binary mixtures with calamitic and non-liquid crystalline benzoic acids carrying one or two alkoxy chains at the aromatic core. The triazines form hydrogen bonded aggregates with the complementary acids. Each investigated equimolar mixture exhibits a columnar mesophase due to segregation of the H-bonded polar core region from the lipophilic aliphatic molecular segments. The cross sectional shape of cylindrical aggregates and, therefore, the two-dimensional lattice symmetries, hexagonal or rectangular, are defined by the number of alkoxy chains of the benzoic acid component.
Author(s)
Goldmann, D.
Janietz, D.
Schmidt, C.
Wendorff, J.H.
Journal
Journal of Materials Chemistry  
DOI
10.1039/b400781f
Language
English
Fraunhofer-Institut für Angewandte Polymerforschung IAP  
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