Synthesis and liquid crystalline properties of new triazine-basedπ-conjugated macromolecules with chiral side groups
Nihat Akkurt, Mohammed Hadi Ali Al‐Jumaili, Hale Ocak, Fatih 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).
Topics & Concepts
MesophaseMacromoleculeChemistryDifferential scanning calorimetryTriazineSide chainSalt (chemistry)Conjugated systemLiquid crystalPolymer chemistryCrystallographyOrganic chemistryPolymerPhase (matter)Materials scienceOptoelectronicsBiochemistryThermodynamicsPhysicsLuminescence and Fluorescent MaterialsLiquid Crystal Research AdvancementsPhotochromic and Fluorescence Chemistry