Liquid-crystalline properties of laterally fluorinated alkyl 4”-alkylterphenyl-4-yl carbonates and their mixtures

ABSTRACT

Terphenyl carbonate compounds were tested in order to establish their use in formation of SmC mixtures. Miscibility studies were performed and phase diagrams were constructed. The influence of the lateral substitution of rigid core by fluorine atoms was checked. Few of tested compounds forming nematic phase support synclinic order in mixtures. It was also found that compounds forming highly ordered tilted phases cannot be used in SmC mixtures because of strong thermal stability of these phases.

GRAPHICAL ABSTRACT

KEYWORDS:

• Liquid crystals
• smectic C phase
• miscibility studies
• optical microscopy
• binary mixtures

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by grant RMN/08-964/2014/WAT ‘Orthoconic ferroelectric mixtures’.