Category: 50670-76-3

Ozturk, Emine published the artcileInvestigation of thermodynamic properties of 4-decyloxybiphenyl-4′-carboxylic acid liquid crystal and preparation of polymer dispersed liquid crystal composite, Application In Synthesis of 50670-76-3, the publication is Journal of Molecular Liquids (2018), 24-30, database is CAplus.

In this study, firstly, retention behavior of solvents on the liquid crystalline material 4-decyloxybiphenyl-4′-carboxylic acid (DBCA) has been studied by inverse gas chromatog. (IGC) technique. Liquid crystal (LC) selectivity was investigated using the acetate isomers by the IGC method at temperatures between 333.2 K and 543.2 K. Later on, the interactions of LC with n-octane, n-nonane, n-decane, undecane, dodecane, tridecane, Pr benzene, iso-Pr benzene, ethylbenzene, chlorobenzene and toluene between 518.2 K and 543.2 K were examined LC-solvent interaction parameters for Flory-Huggins theory, χ^∞₁₂, and equation of state theory, χ^*₁₂, effective exchange energy parameters, X_eff, the weight fraction activity coefficent, Ω^∞₁, the partial molar heat of mixing at infinite dilution of the solvent, ΔH^∞₁, molar heat of vaporization of solvent, ΔH_V and the partial molar heat of sorption of the solvent, ΔH_1,s were obtained. Secondly, polymer dispersed liquid crystal (PDLC) composite film in composition 20/80 poly(Me methacrylate) (PMMA):DBCA by weight was synthesized by solvent-induced phase separation method. The mesomorphic behavior of DBCA and PDLC composite has been investigated by differential scanning calorimetry (DSC) and optical polarizing microscopy (PM).

Journal of Molecular Liquids published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, Application In Synthesis of 50670-76-3.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Ozerol, Esma Ahlatcioglu published the artcileThe impedance and dielectric properties of a chiral biphenylcarboxylic acid liquid crystal, Recommanded Product: Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, the publication is Materials Research Express (2019), 6(6), 065103, database is CAplus.

We have been synthesized a chiral rod-like liquid crystal 4′-(S)-3,7-Dimethyloctyloxy-4-biphenylcarboxylic acid (DMOBC) exhibiting enantiotropic chiral nematic (N*) as a high temperature phase as well as a smectic mesophase (SmI*) in the wide temperature range. The dielec. and impedance properties of 4′-(S)-3,7-Dimethyloctyloxy-4-biphenylcarboxylic acid (DMOBC) liquid crystal have been analyzed over the frequency range from 1 Hz to 10 MHz at the room temperature

Materials Research Express published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, Recommanded Product: Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Trisovic, N. published the artcileMesomorphism of novel stilbene-based bent-core liquid crystals, Formula: C15H14O3, the publication is Liquid Crystals (2021), 48(7), 1054-1064, database is CAplus.

A series of asym. bent-core liquid crystals I (X = COO; Y = H, Cl), bearing the stilbene moiety in the side wing, was synthesized and characterised. Structural modifications of the non-stilbene wing resulted in formation of various mesophases. Compounds I (X = COO; Y = H) and I (X = COO; Y = Cl) with an ester linking group between the Ph rings in this wing have an enantiotropic non-polar smectic-type mesophase, while compound I (Y = H), incorporating the biphenyl moiety, has a ferroelec. SmC_aP_F phase. The mols. of I (Y = H) undergo photoisomerisation in solution under UV irradiation, while the mesophases are unstable and UV irradiation leads to irreversible changes. The mesophases of I (X = COO; Y = H) and I (X = COO; Y = Cl) do not show any electro-optical switching and polarisation current. Applying low frequency AC voltage on a planarly aligned film of compound I (Y = H), smectic domains grow, while the birefringence and an image flickering increase. The observed features of these compounds identify stilbene as an attractive moiety in the design of advanced materials based on bent-core mols.

Liquid Crystals published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C13H19Br2ClN2O, Formula: C15H14O3.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Zhang, Weixin published the artcilePolymer stabilized cholesteric liquid crystal siloxane for temperature-responsive photonic coatings, Recommanded Product: Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, the publication is International Journal of Molecular Sciences (2020), 21(5), 1803, database is CAplus and MEDLINE.

Temperature-responsive photonic coatings are appealing for a variety of applications, including smart windows. However, the fabrication of such reflective polymer coatings remains a challenge. In this work, we report the development of a temperature-responsive, IR-reflective coating consisting of a polymer-stabilized cholesteric liquid crystal siloxane, applied by a simple bar coating method. First, a side-chain liquid crystal oligosiloxane containing acrylate, chiral and mesogenic moieties was successfully synthesized via multiple steps, including preparing precursors, hydrosilylation, deprotection, and esterification reactions. Products of all the steps were fully characterized revealing a chain extension during the deprotection step. Subsequently, the photonic coating was fabricated by bar-coating the cholesteric liquid crystal oligomer on glass, using a mediator liquid crystalline mol. After the UV-curing and removal of the mediator, a transparent IR reflective polymer-stabilized cholesteric liquid crystal coating was obtained. Notably, this fully cured, partially crosslinked transparent polymer coating retained temperature responsiveness due to the presence of non-reactive liquid-crystal oligosiloxanes. Upon increasing the temperature from room temperature, the polymer-stabilized cholesteric liquid crystal coating showed a continuous blue-shift of the reflection band from 1400 nm to 800 nm, and the shift was fully reversible.

International Journal of Molecular Sciences published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C5H10O2S, Recommanded Product: Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Zhang, Zhanhui published the artcileSynthesis and characterization of optically active, main-chain, liquid crystalline polyesters, Quality Control of 50670-76-3, the publication is Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) (1999), 40(2), 880-881, database is CAplus.

Optically active, main-chain, liquid crystalline polyether-polyesters were prepared via room temperature polymerization The samples of the polyester had number-average mol.-weights 12,000-41,900 g/mol, the weight-average mol.-weights 24,500-135,000 g/mol and T_g 37-39° as determined by DSC anal. The polymers could be solution-cast into tough, flexible films or spun into fibers. Thermogravimetric anal. (TGA) of the polymers showed a 5% weight loss at 315-330°, indicating that these chiral polyesters have good thermal stability. The liquid crystalline phases of both the monomer and the polymer were studied by polarized light microscope (PLM).

Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C18H15N3O3, Quality Control of 50670-76-3.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Bai, Feng published the artcileSynthesis of a biphenyl-containing, achiral, V-shaped liquid crystalline polyester, SDS of cas: 50670-76-3, the publication is Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) (1999), 40(2), 878-879, database is CAplus.

A new V-shaped liquid crystalline monomer 1,3-Ph bis[4′-(11-hydroxyundecanyloxy)-4-biphenyl]carboxylate was synthesized from 4′-hydroxy-4-biphenylcarboxylic acid, resorcinol, and 11-bromo-1-undecanol. The polymer was prepared by condensing monomer with isophthalic acid under mild condition using 1,3-dicyclohexylcarbodiimide as condensing reagent in the presence of N,N-dimethylaminopyridinium toluenesulfonate.

Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, SDS of cas: 50670-76-3.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Dominguez, Eduardo published the artcileIntegrated phenotypic and activity-based profiling links Ces3 to obesity and diabetes, Application In Synthesis of 50670-76-3, the publication is Nature Chemical Biology (2014), 10(2), 113-121, database is CAplus and MEDLINE.

Phenotypic screening is making a comeback in drug discovery as the maturation of chem. proteomics methods has facilitated target identification for bioactive small mols. A limitation of these approaches is that time-consuming genetic methods or other means are often required to determine the biol. relevant target (or targets) from among multiple protein-compound interactions that are typically detected. Here, the authors have combined phenotypic screening of a directed small-mol. library with competitive activity-based protein profiling to map and functionally characterize the targets of screening hits. Using this approach, the authors identify carboxylesterase 3 (Ces3, also known as Ces1d) as a primary mol. target of bioactive compounds that promote lipid storage in adipocytes. The authors further show that Ces3 activity is markedly elevated during adipocyte differentiation. Treatment of two mouse models of obesity-diabetes with a Ces3 inhibitor ameliorates multiple features of metabolic syndrome, illustrating the power of the described strategy to accelerate the identification and pharmacol. validation of new therapeutic targets.

Nature Chemical Biology published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, Application In Synthesis of 50670-76-3.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Westphal, Eduard published the artcileLiquid crystalline self-assembly of 2,5-diphenyl-1,3,4-oxadiazole based bent-core molecules and the influence of carbosilane end-groups, Recommanded Product: Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, the publication is Journal of Materials Chemistry C: Materials for Optical and Electronic Devices (2019), 7(10), 3064-3081, database is CAplus.

Bent-core liquid crystals (BCLCs) exhibit unique properties like spontaneous breaking of the mirror symmetry and polar switching by elec. fields, forming the basis of a range of applications currently being developed. Here we report first 2,5-diphenyl-1,3,4-oxadiazole based BCLCs with carbosilane end groups. Their self-assembly in liquid crystalline (LC) phases was investigated by polarizing microscopy, differential scanning calorimetry, X-ray diffraction, electro-optical and dielec. investigations and was compared with a related non-silylated compound A transition from non-modulated via modulated synclinic SmC phases to optically almost isotropic sponge phases was observed with growing packing d. upon lowering temperature, which was investigated in the bulk state as well as in freely suspended films. In the SmC phases of both series the polar order is only local, leading to polarization randomized paraelec. and superparaelec. phases. Development of macroscopic polar order leads to the formation of polarization modulated smectic phases with oblique lattice, followed by optically isotropic LC phases with grainy and sponge-like 3d modulated layers, and finally isotropic crystalline phases. The silylated and non-silylated 1,3,4-oxadiazole based BCLCs have almost identical phase sequences differing mainly in details of the switching characteristics and in the structure of the optically isotropic low temperature LC phases, being achiral with a local SmC_sP_A structure for the silylated compounds and chiral with a local SmC_aP_A structure if non-silylated. Elongation of the bent core unit of the silylated oxadiazoles favors synpolar order, leading to a ferroelec. LC phase, while 3d layer distortion is suppressed. Overall, this work provides a general understanding of the LC phase sequences of the important class of 1,3,4-oxadiazole based BCLCs and of the nature of the distinct types of achiral and mirror-symmetry broken chiral (dark conglomerate type) isotropic LC phases in general.

Journal of Materials Chemistry C: Materials for Optical and Electronic Devices published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H21BO3, Recommanded Product: Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Hori, Ryo published the artcileLight-Driven Phase Transition in a Cubic Phase-Forming Binary System Composed of 4′-n-Docosyloxy-3′-nitrobiphenyl-4-carboxylic Acid and an Azobenzene Derivative, Related Products of esters-buliding-blocks, the publication is Chemistry – A European Journal (2012), 18(24), 7346-7350, S7346/1-S7346/30, database is CAplus and MEDLINE.

By means of photoisomerization of a doped azobenzene derivative, the authors have for the first time demonstrated the light-driven bi-continuous cubic SmC (SmC-Cub_bi) phase transition, in which a 1D-organized SmC phase structure is switched reversibly to and from the 3D-organized structure of the Cub_bi phase. At the SmC-Cub_bi phase transition, several functions, such as optical property and viscosity, change dramatically, and thus it is anticipated that the UV-responsive Cub_bi systems could be multifunctional soft materials. Furthermore, it should be stressed that the methodol. of simply using binary mixtures containing an azobenzene derivative can avoid the synthetic difficulty that impedes the development of such UV-responsive Cub_bi systems.

Chemistry – A European Journal published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, Related Products of esters-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Zurowska, Magdalena published the artcileSynthesis and properties of ferro- and antiferroelectric esters with a chiral centre based on (S)-(+)-3-octanol, HPLC of Formula: 50670-76-3, the publication is Liquid Crystals (2019), 46(2), 299-308, database is CAplus.

A homologous series of chiral three ring esters were synthesized and their properties were studied. The materials possess an antiferroelec. phase (SmCA*) or/and a ferroelec. phase (SmC*), which was confirmed by observations of microscopic textures using a polarising optical microscope. The phase transition temperatures and enthalpies were checked by differential scanning calorimetry. The helical pitch was measured by a spectrophotometry method. For all cases the helix was right-handed, in the antiferroelec. phase the helical pitch increases with temperature, and in the ferroelec. phase the helical pitch was short.

Liquid Crystals published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C10H9ClN2O, HPLC of Formula: 50670-76-3.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics