polarizability

Synthesis of sulfoquercetin and studies of its structure and nonlinear properties have been carried out. Using quantum-chemical simulations, 13С and HSQC NMR spectrometry, FTIR spectroscopy it was shown that a sulphonic group occurs in C8 location of quercetin. Molecular first hyperpolarizability of the obtained 8-sulfoquercetin was studied. It was shown that 8-sulfoquercetin can be used for creation the new polymer NLO materials on its basis.

The correlation between the parameters of chemically plasticized polar polymers (glass transition temperature, solubility parameter, cohesive energy, polarizability, modulus of elasticity in shear) with polarity and van der Waals volume of macromolecule link was investigated. It was shown that the chemical plasticization of PVAc and PVME by the alkylated polar groups replacement in weakly polar methyl group is not associated with the parameters of isolated macromolecule and is mainly determined by the intermolecular interaction.