Synthesis and liquid crystalline properties of new triazine-based pi-conjugated macromolecules with chiral side groups
TURKISH JOURNAL OF CHEMISTRY, cilt.44, ss.726-746, 2020 (SCI-Expanded, Scopus, TRDizin)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 44
- Basım Tarihi: 2020
- Doi Numarası: 10.3906/kim-1912-51
- Dergi Adı: TURKISH JOURNAL OF CHEMISTRY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, TR DİZİN (ULAKBİM)
- Sayfa Sayıları: ss.726-746
- Anahtar Kelimeler: Triazine, ionic liquid crystals, hydrogen bonding, star-shaped triazine, Sonogashira coupling, G PHASE, MOLECULES, MESOGENS, SERIES
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Yıldız Teknik Üniversitesi Adresli: Evet
Özet
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).