Synthesis and characterization of hydrogen bonded 4-octyloxy benzoic acid/sebacic acid binary liquid crystal complex
Küçük Resim Yok
Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Bitlis Eren Üniversitesi
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, the binary liquid crystal complex system was synthesized from mesogenic 4-octyloxy
benzoic acid (8BAO) and non-mesogenic sebacic acid (SEA) chemical compounds. The thermal and
microstructural properties of the synthesized 8BAO/SEA binary liquid crystal complex system were
investigated by differential scanning calorimeter (DSC) and polarized optical microscopy (POM). The
formation of the hydrogen bond between the 8BAO and SEA compounds was confirmed by Fourier
Transformed Infrared spectroscopy (FTIR) assays. The DSC and POM results showed that the
8BAO/SEA binary complex exhibited liquid crystalline properties due to the hydrogen bonds formed.
The 8BAO/SEA binary liquid crystal complex showed four phase transition peak indicating
Cr↔SmG↔SmC↔N↔I phase sequence during continuous heating and cooling by DSC. This phase
sequence has also been confirmed by POM observations. Furthermore, the effect of the heating rate on the
phase transition temperature and enthalpy change values was investigated, and as the heating rate
increased, the phase transition temperature and enthalpy values generally increased. Additionally, the
thermal stability factor and the phase transition order parameter were calculated and the phase transitions
were found to be regular.
Açıklama
Anahtar Kelimeler
Hydrogen Bonded Liquid Crystals, Thermal Properties, Microstructure
Kaynak
WoS Q Değeri
Scopus Q Değeri
Cilt
Sayı
Künye
Okumuş, M., Sünkür, M. (2017). Synthesis and characterization of hydrogen bonded 4-octyloxy benzoic acid/sebacic acid binary liquid crystal complex. International Conference on Multidisciplinary, Engineering, Science, Education and Technology (IMESET’17 Bitlis), 27-29 October 2017, Bitlis.
