Special Features of Multiple Luminescence of the Dyad Containing Imidazole and Coumarin Fragments in Photocured Network Acrylate Polymers

I. A. Matveeva; Матвеева И. А.; V. T. Shashkova; Шашкова В. Т.; A. V. Lyubimov; Любимов А. В.; G. V. Lyubimova; Любимова Г. В.; L. S. Kol’tsova; Кольцова Л. С.; A. I. Shienok; Шиенок А. И.; N. L. Zaichenko; Зайченко Н. Л.

doi:10.31857/S2308113923700547

Special Features of Multiple Luminescence of the Dyad Containing Imidazole and Coumarin Fragments in Photocured Network Acrylate Polymers

Autores: Matveeva I.A.¹, Shashkova V.T.¹, Lyubimov A.V.¹, Lyubimova G.V.¹, Kol’tsova L.S.¹, Shienok A.I.¹, Zaichenko N.L.¹
Afiliações:
1. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences
Edição: Volume 65, Nº 4 (2023)
Páginas: 295-303
Seção: ФУНКЦИОНАЛЬНЫЕ ПОЛИМЕРЫ
URL: https://archivog.com/2308-1139/article/view/650883
DOI: https://doi.org/10.31857/S2308113923700547
EDN: https://elibrary.ru/QLCORW
ID: 650883

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Resumo

The conditions to prepare luminescent acrylate polymers containing the organic dyad, molecule of which combines two different emitting fragments, hydroxyl-substituted 2,4,5–triarylimidazole and 8-azomethine-7-hydroxycoumarine moieties, via photocuring have been optimized. The effect of the nature of the photocured network acrylate polymers on luminescent properties of the dyad has been investigated. The prepared aliphatic network polymers have exhibited independent fluorescence of both molecule fragments, dependent on the excitation wavelength. At the same time, the aromatic network polymers and the aliphatic network polymers containing ether links have revealed only the imidazole fragment fluorescence. The fluorescence nature has been stronger dependent on the polymer repeat unit structure and the content of the aromatic fragments in the polymer matrix than on the presence of the hydroxyl groups in the polymer. It has been shown that the emission of the imidazole fragment of the dyad in the aliphatic network polymers depends on the internode distance and conditional polarity of the medium.

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