Abstract
It has been demonstrated that formation of isomeric “colored” merocyanine forms B and B x of indoline spiroantrooxazine (SAO) introduced into Fluoroplast F-42 matrix from supercritical carbon dioxide (SC-CO2) depends on the volume concentration of toluene in the medium, which plays a role of an aromatic electron donor cosolvent. It also has been shown that observed dependencies of changes in the content of introduced photochrome forms, forming in the Fluoroplast F-42 matrix, can be described by a scheme which reflects the redistribution kinetics of SAO molecules between the medium (SC-CO2) and the polymer. In this case, the “blue” form B is formed by SAO molecules solvated by toluene, which localize at specific fragments of the matrix and form triple SAO/F-42/toluene complexes. The “Red” form B x is formed under the coordination of desolvated SAO molecules, which transfer into the matrix from the SC-CO2 medium, near F-42 matrix fragments.
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Original Russian Text © A.V. Cherkasova, N.N. Glagolev, A.S. Kopylov, T.S. Zarkhina, P.S. Timashev, V.N. Bagratashvili, A.B. Solovieva, 2014, published in Sverkhkriticheskie Flyuidy: Teoriya i Praktika, 2014, Vol. 9, No. 4, pp. 22–31.
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Cherkasova, A.V., Glagolev, N.N., Kopylov, A.S. et al. Formation of long-lived “colored” spiroantrooxazine isomers incorporated into fluoroplast F-42 matrix in a supercritical carbon dioxide medium. Russ. J. Phys. Chem. B 9, 1116–1122 (2015). https://doi.org/10.1134/S1990793115080023
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DOI: https://doi.org/10.1134/S1990793115080023