Synclinic and anticlinic properties of (R,S) 4′-(1-methylheptyloxycarbonyl)biphenyl-4-yl 4-[7-(2,2,3,3,4,4,4-heptafluorobutoxy)heptyl-1-oxy]benzoates

ABSTRACT

Four racemic mixtures were synthesized and characterized. Their mesomorphic properties, such as phase transitions temperatures and enthalpies, were measured by a polarizing optical microscope and differential scanning calorimetry. The influence of one racemic mixture on the properties of the OAFLC mixture W-1000 was studied. The results show a wide temperature range of the SmC_A* phase in this new mixture. The helical pitch was measured by spectrophotometry method. The electro-optical properties of the mixture were also presented and discussed.

KEYWORDS:

• Synthesis
• anticlinic smectic phase
• synclinic smectic phase
• enthalpies
• helical pitch
• tilt angle

ORCID

M. Urbańska http://orcid.org/0000-0001-6824-363X

J. Dziaduszek http://orcid.org/0000-0001-8473-4797

O. Strzeżysz http://orcid.org/0000-0002-4862-5726

M. Szala http://orcid.org/0000-0002-6928-2689

Additional information

Funding

This work was supported by Military University of Technology [grant number PBS 23-651].