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X-ray diffraction analysis of quercetin and polymers based on its
(NGO the Institute for Social Transformation, 2018) Mishurov, Dmytro; Voronkin, Andrii; Roshal, Alexander
Synthesis of glycidyl ethers of quercetin and studies of their structure have been carried out. The X-ray studies of glycidyl ethers of quercetin were performed using by the Debye–Sherrer method. The XRD data are in good correlation with the results of thermophysical studies and analysis by the scanning electron microscopy method, which was carried out earlier.
Influence of structure 3,5,7,3',4'–Pentahydroxyflavone-based polymer films on their optical transparency
(2017) Mishurov, Dmytro; Voronkin, Andrii; Roshal, Alexander; Bogatyrenko, Sergey
Optical properties and morphology of polymer films based on diglycidyl ether of bis-phenol A and on natural compound 3,5,7,30 ,40 epentahydroxyflavone (quercetin) using UVevis spectroscopy, scanning electron microscopy and powder X-ray diffraction methods have been investigated. The influence of ordering degree of the polymers, flexibility of their chains, intensity of intermolecular interaction between the quercetine moieties on the polymers' morphology was discussed. It is shown that all the quercetine-based polymer films are transparent at visible and near infrared regions beginning from 420 to 450 nm. Low optical transparency in the short-wavelength region can be explained the self-absorption of quercetin moieties in the polymer chains