131691-92-4Relevant academic research and scientific papers
Liquid crystalline properties and orientational structure of binary systems built from poly(vinylalcohol) and amphiphilic compound
Ujiie, Seiji,Yano, Yumi
, p. 265 - 272 (2000)
Liquid crystalline binary systems, consisting of poly(vinylalcohol) and an amphiphilic compound with hydrophobic nitroazobenzene and hydrophilic ethyleneimine units, were prepared, and their thermal and liquid crystalline properties were estimated. The amphiphilic compound exhibited a smectic A phase with a focal conic fan texture. The liquid crystalline binary systems showed a thermotropic smectic A mesophase. In the smectic A phase, a smectic layer structure with hydrophobic and hydrophilic sublayers was formed. frnrlinn: thprmnl nrnnprtips 2000 OPA (Overseas Publishers Association) N.V. Published by license under the Gordon and Breach Science Publishers imprint.
Synthesis and characterization of azobenzene-based gold nanoparticles for photo-switching properties
Biswas, Tapan Kumar,Sarkar, Shaheen M.,Yusoff, Mashitah M.,Rahman, Md Lutfor
, p. 231 - 237 (2016)
A series of new azobenzene based thiolated liquid crystals modified with gold nanoparticles were synthesized and characterized using a different mode of delegated tools e.g. FTIR, NMR and FESEM-EDX measurements for the structural properties of synthesized compounds. Polarized optical microscopy studies have revealed all the studied compounds having liquid crystalline properties, as a typical nematic phase. These liquid crystal capped gold nanoparticles' size was determined by TEM experiment. In addition, azobenzene-based gold nanoparticles containing flexible spacers showed photochromic behavior upon UV irradiation. These molecules exhibited strong photoisomerisation behavior in solutions and their trans to cis isomerisation took about 44 s whereas the reverse process almost took place ranging from 82 to 125 min.
Synthesis and liquid crystalline properties of a disc-shaped molecule with azobenzene at the periphery
Rahman, Md. Lutfor,Tschierske, Carsten,Yusoff, Mashitah,Silong, Sidik
, p. 2303 - 2306 (2007/10/03)
A triphenylene-based novel liquid crystal was synthesised whose peripheral cores are six rod-like azobenzene moieties linked through alkyl chains. A disc-shaped molecule 2,3,6,7,10,11-hexakis-[{4-(4-nitrophenylazo)phenoxy} hexyloxy]triphenylene was prepar
Thermal properties of liquid-crystalline diols and corresponding bis-urethanes with mesogenic groups of various structures in side chains
Kaspar,Hamplova,Novotna,Studenovsky,Ilavsky
, p. 17 - 30 (2007/10/03)
The liquid-crystalline dials with mesogenic groups of different structures were synthetized and their temperature behavior and existence of mesophases were determined. These compounds were also reacted with phenylisocyanate to form bis-urethanes at the ra
