Anchoring discotics

Motoyanagi J, Fukushima T, Aida T (2005) Discotic liquid crystals stabilized by interionic interactions imidazolium ion-anchored paraffinic triphenylene. Chem Commun (Cambridge) 1 101-103... 

Recently, Chiang et al. produced microtrenches on substrates and studied the molecular stacking of triphenylene discotic molecules on the substrate [193]. They demonstrated that the discotic molecules in the trenches can assemble into uniaxially aligned columns (Fig. 7.14). The way in which the discotic molecules anchor on the walls of trenches and the over all orientation of the columns are determined by the energetic conditions of the walls. They show that the orientation direction of the columns can be controlled to align either parallel or perpendicular... 

J.K. Vij, A. Kocot, T.S. Perova, Order parameter, alignment and anchoring transition in discotic liquid crystals. Mol. Cryst. liq. Cryst. 397, 231-244 (2003)... 

T.S. Perova, J.K Vij, A. Kocot, Observation of an anchoring transition in a discotic liquid crystal. Europhys. Lett. 44, 198-204 (1998)... 

T. Brunet, O. Thiebaut, E. Charlet, H. Bock, J. Kelber, E. Grelet, Anchoring transition in confined discotic columnar liquid crystal films. Eur. Phys. Lett. 93(16004), 1-6 (2011)... 

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