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An interesting discotic triphenylene derivative, 2,7-biscarbethoxy-3,6,10,11-tetrapentyloxytriphenylene, can be homeotropically aligned on a large scale as a film on single substrates, i.e. the film with one side on the substrate and the other side freestanding. The alignment is achieved in a controlled condition close to a thermodynamic equilibrium state in a liquid crystal phase when interactions...
A novel liquid crystalline material which consists of both discotic and calamitic units to form a star structure bearing a triphenylene as centre core and three cyanobiphenyl tails has been synthesized. Phase behaviour of the material was investigated using polarised optical microscopy, thermal analysis and X-ray diffraction. The heterogeneous tetramer showed multi-mesophases that can be kinetically...
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