Luminescence spectral peculiarities of polymethine dye, bonded covalently to polyurethane matrix

Luminescence spectral properties of the two symmetrical indocyanine dyes with different substituents near nitrogen atoms have been investigated in the polyurethane matrices. The analysis of the IR-spectra, measured for the product of a reaction between indolenine salt, being a terminal heterocyclic...

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Bibliographic Details
Published in:Molecular Crystals and Liquid Crystals 2022-11, Vol.748 (1), p.90-98
Main Authors: Bezrodna, T. V., Ishchenko, A. A., Kosyanchuk, L. F., Derevyanko, N. A., Antonenko, O. I., Bezrodnyi, V. I.
Format: Article
Language:English
Subjects:
Covalence
covalent bonding
Dyes
Isocyanates
Luminescence
Mathematical analysis
Nitrogen atoms
Polymers
Polymethine dye
polyurethane matrix
Polyurethane resins
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Summary:Luminescence spectral properties of the two symmetrical indocyanine dyes with different substituents near nitrogen atoms have been investigated in the polyurethane matrices. The analysis of the IR-spectra, measured for the product of a reaction between indolenine salt, being a terminal heterocyclic fragment in one of these dye molecules, and phenyl isocyanate, and this salt and isocyanate as single bulk compounds has shown possibility of covalent bonding between this indocyanine and polyurethane. Such covalent bonding of the dye with the polymer matrix results in improvement of its luminescence spectral properties, compared to the dye-polymer solutions.
ISSN:1542-1406
1563-5287
1527-1943
DOI:10.1080/15421406.2022.2067664