305635-94-3Relevant academic research and scientific papers
Chiral nematic liquid crystalline copolymers as stationary phase materials in capillary gas chromatography
Lee, Yi-Wen,Lin, Chih-Hung
, p. 5190 - 5194 (2012/09/21)
A new series of liquid crystalline polysiloxanes with a very wide range of mesomorphic temperatures has been prepared. They contain 4-cholesteryl-(10- undecen-1-yloxy) biphenyl-4'-carboxylate mesogenic and 4-biphenyl-4'- allyloxybenzoate mesogenic side groups displaying enantiotropic nematic and chiral nematic phases. The mesomorphic polysiloxane specimen with the widest temperature range was used as the stationary phase in a gas chromatography capillary column and it showed unique separation properties for polycyclic aromatic compounds.
Cholesteric silatranes
Alvarez,Mehl
, p. 259/2125-267/2133/ (2007/10/03)
Most liquid crystals with a C3 symmetry have so far been discotic systems, e.g., triphenylenes. In the context of calamitic systems research has concentrated on triptycenes and to a lesser extend on silatranes. In this contribution we report our investigations of cholesteric silatrane systems, which have been obtained by connecting a tribenzylsilatrane core to cholesteric groups via alkyl and siloxane spacer groups.
