An effect of structurally non-compatible additive on the properties of a long-pitch orthoconic antiferroelectric mixture

Abstract

In search of the long-pitch orthoconic antiferroelectric liquid crystalline mixture 1–3 D’have, K , Rudquist, P and Lagerwall, ST . 2000. Solution of the dark state problem in antiferroelectric liquid crystal displays. Appl. Phys. Lett., 76: 3528–3530. Dąbrowski, R , Gąsowska, J and Otón, JM . 2004. High tilted antiferroelectric liquid crystalline materials. Displays, 25: 9–19. Piecek, W , Perkowski, P and Raszewski, Z . 2010. Long pitch orthoconic antiferroelectric mixture for display applications. Mol. Cryst. Liq. Cryst., 525 (in press) with a broad antiferroelectric smectic phase was successfully formulated. The effect of additive of structurally non-compatible antiferroelectric dopant 4 Hamplova, V , Bubnov, A and Kaspar, M . 2003. New ferroelectric and antiferroelectric liquid crystalline materials containing differing numbers of lactate units. Liq. Cryst., 30: 627–631. [Taylor & Francis Online], [Web of Science ®] [Google Scholar] on the phase structure, transition temperatures, and electrooptical properties of an antiferroelectric orthoconic mixture W1000 3 Piecek, W , Perkowski, P and Raszewski, Z . 2010. Long pitch orthoconic antiferroelectric mixture for display applications. Mol. Cryst. Liq. Cryst., 525 (in press) [Google Scholar] was investigated with thermal, electro-optical, and XRD methods. Experimental data demonstrates that eutectic mixture W1000F obtained by doping of mixture W1000 with highly tilted antiferroelectric dopant maintains the orthoconic properties. The effects of the significant reduction of the rotational viscosity of the admixture is presented and discussed. Comprehensive analysis of parent mixture W1000 and doped mixture W1000F revealed that the affects the intralayer as well as interlayer intermolecular interactions.