Synthesis and liquid crystalline properties of new triazine-based $\pi $-conjugated macromolecules with chiral side groups

Authors

NİHAT AKKURT
MOHAMMED HADI ALI AL-JUMAILI
HALE OCAK
FATİH ÇAKAR
LOKMAN TORUN

Abstract

In this study, we reported the synthesis of a new tribranched macromolecule liquid crystal with triazine in the centre. The central triazine core is bonded via sequences of Sonigashira coupling to 3 triazine unites through acetylenic bridges. The triazines at the periphery are substituted with 2 chiral citronellyloxy side groups. The salt of the resulting star-shaped macromolecule, which was oily at room temperature, with 4-dodecyloxybenzoic acid at 1:1 ratio exhibited a Smectic C (SmC) mesophase. The liquid crystalline properties of organic salt were investigated using DSC (differential scanning calorimetry) and POM (polarizing optical microscopy).

DOI

10.3906/kim-1912-51

Keywords

Triazine, ionic liquid crystals, hydrogen bonding, star-shaped triazine, Sonogashira coupling

First Page

726

Last Page

735

Recommended Citation

AKKURT, N, AL-JUMAILI, M. H, OCAK, H, ÇAKAR, F, & TORUN, L (2020). Synthesis and liquid crystalline properties of new triazine-based $\pi $-conjugated macromolecules with chiral side groups. Turkish Journal of Chemistry 44 (3): 726-735. https://doi.org/10.3906/kim-1912-51