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Synthesis and liquid crystalline properties of new triazine-based ?-conjugated macromolecules with chiral side groups.

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).

SUBMITTER: Akkurt N

PROVIDER: S-EPMC7671215 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Synthesis and liquid crystalline properties of new triazine-based π-conjugated macromolecules with chiral side groups.

Akkurt Nihat N Al-Jumaili Mohammed Hadi Ali MHA Ocak Hale H Çakar Fatih F Torun Lokman L

Turkish journal of chemistry 20200601 3

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) mesophas ...[more]

PMID: 33488189

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