Synthesis and characterization of new bent-core liquid crystal with a ferroelectric-like switching / modified magnetite nanocomposite
    
Yazarlar (5)
Aykun Özkonstanyan Yıldız Teknik Üniversitesi, Türkiye
Doç. Dr. Hatice Hande MERT Yalova Üniversitesi, Türkiye
Doç. Dr. Mehmet Selçuk MERT Yalova Üniversitesi, Türkiye
Belkız Bilgin Eran Yıldız Teknik Üniversitesi, Türkiye
Hale Ocak Yıldız Teknik Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Journal of Molecular Structure
Dergi ISSN 0022-2860 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 12-2020
Cilt / Sayı / Sayfa 1222 / 1 / 128851–0 DOI 10.1016/j.molstruc.2020.128851
Makale Linki https://linkinghub.elsevier.com/retrieve/pii/S0022286020311765
Özet
A new bent-core liquid crystal (LC) compound 4-Cyano-1,3-phenylenebis[4-(4-(S)-2-Dodecyloxypropionyloxyphenoxycarbonyl)benzoate] (CyPDB) consisting of O-dodecyl lactate substituted terephthalate based rod-like units which were located at 1,3-positions of 4-cyanoresorcinol central unit has been synthesized and LC/1.0% modified Fe3O4 nanocomposite has been prepared. The effects of being the doped with 1.0% modified Fe3O4 (magnetite) nanoparticles on mesomorphic properties of the new bent-core liquid crystal, which exhibits an enantiotropic SmA phase with a ferroelectric-like switching, were investigated by differential scanning calorimetry, optical polarizing microscopy and electro-optic studies. The surface of Fe3O4 (magnetite) nanoparticles was modified with a silane surfactant, octadecyltrimethoxysilane (OTMS), used as a compatibilizer for the attractive interaction of liquid crystal molecule with Fe3O4 nanoparticles. The size, morphology and distribution of modified Fe3O4 (magnetite) nanoparticles in LC host were investigated by using Transmission Electron Microscope (TEM) and Scanning Electron Microscopy (SEM). The magnetic properties of nanocomposite were studied using a vibrating-Sample Magnetometer (VSM).
Anahtar Kelimeler
Bent-core liquid crystal | Fe3O4 (magnetite) nanoparticles | Lactate unit | Nanocomposite