Thermostable Polarizing Film on the Basis of Poly (vinyl alcohol) and New Dichroic Synthesized Azo Dye for Optical Applications: Theoretical and Experimental Investigations
Journal Title: Chemical Methodologies - Year 2017, Vol 2, Issue 2
Abstract
Quantum-chemical calculations using the Density Functional Theory (DFT) approach for structural analysis of the new dichroic mono azo dye: Sodium (E)-5-((4-carboxylatophenyl)diazenyl)-2-hydroxybenzoate (S) (trans isomer) was carried out using B3LYP methods with 6-311+G* basis set. After calculations, the new mono azo dye was synthesized. UV, FT-IR and 1H NMR spectra of the compound S are reported. The electronic spectrum of the mono azo dye S was also carried out in the water solution. Interpretation of absorption strips in UV region of spectrum was also reported. On the basis of the polyvinyl alcohol (PVA) and the new dichroic synthesized azo dye polarizer film (λmax=388 nm) with effect of polarization (PE = 97%) was developed. The main spectral-polarization parameters (transmittance, optical density) of stretched PVA-films were measured and discussed. It was also established that oriented colored PVA-films is phenomenon of anisotropy of thermal conductivity ( / ). Thermal conductivity in the direction of orientation () is higher than in the direction perpendicular to the orientations (). The developed thermostable polarizer film was used in polarizing microscopes, circular polarizers, magnetometers, spectropolarimeters and electrical signals sensors.
Authors and Affiliations
Siyamak Shahab, Liudmila Filippovich, Masoome Sheikhi, Radwan A. alnajjar
Keywords
Related Articles
- EP ID EP252697
- DOI 10.22631/chemm.2017.96853.1009
- Views 132
- Downloads 0
10.22034/CHEMM.2018.66185
A new LC-MS based method was developed to detect three potential genotoxic impurities namely, N',N'''-(4,6-dichloropyrimidine-2,5-diyl)bis[N,N-dimethyl(imidoformamide)]} (Impurity-I), {N-(2-amino-4-chloro-6-{[(1S,2R)-2-(...
Conductance and FTIR Spectroscopic Study of Triple-ion Formation of Tetrabutylphosphonium Methanesulfonate in Methylamine Solution
Triple-ion formation of tetrabutylphosphonium methanesulfonate [Bu4PCH3SO3] in methylamine solution has been reported quantitatively by conductometric study, and the observation has evident from the qualitative analysis...
Insight into the Stability, Reactivity, Structural and Spectral Properties of the Anti, Syn-endo and Syn-exo Isomers of Bis(N-ethoxy-N-ethyl-dithiocarbamato)Nitrido Technetium-99m [99mTc-N(NOEt)2] Radiopharmaceutical
(Ethoxy(ethyl)amino)methanedithiol is used in nuclear medicines as a ligand for the preparation of diagnostic radiopharmaceuticals. Among the available radionuclide tracers, technetium-99m (99mTc) is a good choice for my...
Computational NQR−NBO Parameters and DFT Calculations of Ampicillin and Zwitterion (Monomer and Dimer Structures)
Density functional theory (DFT) was used to analyze the structure and Nuclear quadrupole coupling constants (NQCC), χ, and asymmetry parameters, η, of 14N nuclei have been calculated for the antimicrobialampicillin in mo...
Electro-Optical and Photovoltaic Properties of Oligothiophene and Derivatives; Experimental and Theoretical Investigations
In this work, conjugated polymers based on thiophene: polythiophene, poly (3-alkythiophene) and poly (alkylbithiophene) were characterized using the nuclear magnetic resonance (NMR) and UV spectroscopy to determine their...