Why certain liquids have the liquid crystal properties

Przemyslaw Adamski

doi:10.1117/12.581138

1 September 2004 Why certain liquids have the liquid crystal properties

Przemyslaw Adamski

Proceedings Volume 5565, XV Conference on Liquid Crystals; (2004) https://doi.org/10.1117/12.581138
Event: XV Conference on Liquid Crystals, 2003, Zakopane, Poland

Abstract

The creation reasons of liquid crystal state have not explained up to now. This article is devoted for the elaboration a new solution of this problem. Author found the new calculation method of expression Σ(r_i)² which is a function of temperature, molecular weight and light wavelength. The Σ(r_i)² characterize the molecule of liquid and is connected with the distance polarizability tensor components α_parallel1, α_{perpendicular1} by the formula. Σ(r_i)² = (Z r_o)^½ [(α_parallel1)^½/2 + (α_{perpendicular1})^½]. For liquid crystal one can obtain two values of Σ(r_i)². First the Σ(r_i)²_To for the transition temperature T_o the isotropic liquid state of liquid crystal and second Σ(r_i)²_Tc for the transition temperature to the solid state of liquid Crystal. These quantities must to satisfy the relation Σ(r_i)²_To < Σ(r_i)²_Tc for all liquid crystals. If it is inversely the liquid does not possess the liquid crystal properties.

Citation Download Citation

Przemyslaw Adamski "Why certain liquids have the liquid crystal properties", Proc. SPIE 5565, XV Conference on Liquid Crystals, (1 September 2004); https://doi.org/10.1117/12.581138

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