Synthesis and Characterization of Bent‐Core Liquid Crystal / Modified γ‐Al2O3 Nanocomposites

Karabuğa, Hande; MERT, Hatice Hande; Karanlık, Gürkan; Ocak, Hale

doi:10.1002/slct.201902589

Synthesis and Characterization of Bent‐Core Liquid Crystal / Modified γ‐Al2O3 Nanocomposites

Yazarlar (4)

Hande Karabuğa Yıldız Teknik Üniversitesi, Türkiye

Doç. Dr. Hatice Hande MERT Yalova Üniversitesi, Türkiye

Gürkan Karanlık 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	Chemistryselect (Q3)
Dergi ISSN	2365-6549 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler	SCI-Expanded
Makale Dili	İngilizce	Basım Tarihi	08-2019
Cilt / Sayı / Sayfa	4 / 31 / 8983–8988	DOI	10.1002/slct.201902589

Özet

A new bent-core liquid crystal (LC) compound CPDB derived from a 4-chlororesorcinol central core unit with two terephthalate based rod-like units carrying chiral (S)-3,7-dimethyloctyloxy terminal chains has been synthesized and LC / modified γ-Al2O3 nanocomposites have been prepared in different compositions. The effects of being doped with 0.3, 0.5, 1.0, 2.0, 3.0 and 4.0% modified γ-Al2O3 nanoparticles on mesomorphic properties of the new bent-core liquid crystal, which shows an enantiotropic SmA phase, were investigated by differential scanning calorimetry and optical polarizing microscopy. The surface of γ-Al2O3 nanoparticles was modified with a cationic agent, cetyltrimethyl ammonium bromide (CTAB), used as a compatibilizer for providing interaction of liquid crystal molecule with alumina nanoparticles. The immobilization of CTAB on γ-Al2O3 nanoparticle surface via physical adsorption in solution was confirmed by TGA and preserved of crystalline structure of aluminium oxide was proved by XRD analysis. The presence and homogeneous distribution of alumina nanoparticles in LC were confirmed by using Scanning Electron Microscopy (SEM) and energy dispersive X-ray (EDX) spectroscopy. The modified γ-Al2O3 nanoparticles in CPDB liquid crystal give rise to a slight increase in the mesomorphic range by preserving mesophase type as observed in pure liquid crystalline compound.

Anahtar Kelimeler

Liquid crystals | Mesomorphic properties | Nanocomposites | Nanoparticles

BM Sürdürülebilir Kalkınma Amaçları

Atıf Sayıları
WoS	7
SCOPUS	9
Google Scholar	9

Synthesis and Characterization of Bent‐Core Liquid Crystal / Modified γ‐Al2O3 Nanocomposites

Dergi Adı	ChemistrySelect
Yayıncı	Wiley-Blackwell Publishing Ltd
Açık Erişim	Hayır
ISSN	2365-6549
E-ISSN	2365-6549
CiteScore	3,0
SJR	0,366
SNIP	0,434

Synthesis and Characterization of Bent‐Core Liquid Crystal / Modified γ‐Al2O3 Nanocomposites

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