Forming of long-living «colored» spiroantrooxazine isomers incorporated into fluoroplast F-42 matrix in supercritical carbon dioxide medium

2014, №4

сс. 22-31

A.V. Cherkasova, N.N. Glagolev, A.S. Kopylov, T.S. Zarkhina, P.S. Timashev, V.N. Bagratashvili, A.B. Solovieva

Key words: supercritical fluid impregnation, supercritical carbon dioxide, thermoplastic polymers, photochrome indoline spirocompounds, toluene, spectrophotometry

It is demonstrated that the generation of isomer «colored» merocyanine forms B and
В_х of the indoline spiroantrooxazine (SAO), which was introduced into fluoroplast F-42
matrix from supercritical carbon dioxide (SC-CO₂), depends on the volume content of
toluene. Toluene in this medium serves as aromatic electron-donating co-solvent. It is
shown that the observed ratios of spiroantrooxazine forms content can be described
in the framework of kinetic scheme that assumes the SAO molecules relocation between
two phases — SC-CO₂ and polymer. The «blue» B form is represented by SAO molecules
solvated by toluene and localized near certain matrix fragments. Id est, this form is a
part of a triple SAO/F-42/toluene complex. The formation of the «red» colored В_х form
is due to the coordination of non-solvated SAO molecules penetrating into the matrix
from SC-CO₂ in the nearest environment of matrix F-42 polymer fragments.

Translated article

doi:10.1134/S1990793115080023

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ГОСТ
7.0.100-2018

Черкасова, А.В. Forming of long-living «colored» spiroantrooxazine isomers incorporated into fluoroplast F-42 matrix in supercritical carbon dioxide medium / А.В. Черкасова, Н.Н. Глаголев, А.С. Копылов [и др.]. – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2014. – Т. 9. – № 4. – С. 22-31.

TRANSLIT

CHerkasova, A.V. Formirovanie izomerov dolgozhivushchih «okrashennyh» form spiroantrooksazina, vvedennogo v matricu ftoroplasta F-42 v srede sverhkriticheskogo dioksida ugleroda v prisutstvii toluola / A.V. CHerkasova, N.N. Glagolev, A.S. Kopylov [i dr.]. – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2014. – Т. 9. – № 4. – S. 22-31.

A.V. Cherkasova, N.N. Glagolev, A.S. Kopylov, T.S. Zarkhina, P.S. Timashev, V.N. Bagratashvili, A.B. Solovieva Forming of long-living «colored» spiroantrooxazine isomers incorporated into fluoroplast F-42 matrix in supercritical carbon dioxide medium. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 4, 22-31 (2014). https://doi.org/

Forming of long-living «colored» spiroantrooxazine isomers incorporated into fluoroplast F-42 matrix in supercritical carbon dioxide medium

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