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Photochromism of indoline spiropyrans of the coumarin series in polymeric matrices |
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| Authors: | S. M. Dolotov V. S. Miroshnikov T. A. Chibisova Sin Su-Lan O. V. Venidiktova T. M. Valova A. A. Dunaev Yu. P. Strokach V. A. Barachevsky V. F. Traven’ |
| Affiliation: | (1) D. I. Mendeleev Russian University of Chemical Technology, 9 Miusskaya pl., 125047 Moscow, Russian Federation;(2) Photochemistry Center, Russian Academy of Sciences, 7a ul. Novatorov, 117421 Moscow, Russian Federation;(3) University of Chemical Technology of China, 33 Fuchgenlu, 100037 Beijing, China |
| Abstract: | The photochromic properties and aggregation processes of merocyanine forms of indoline spiropyrans of the coumarin series in the block and film poly(methyl methacrylate) (PMMA) were studied and compared by spectral and kinetic methods. Photochromism of the synthesized compounds depends on their structure. The efficient formation of J-aggregates was observed for indoline spiropyrans of the coumarin series based on 8-formyl-7-hydroxy-4-methylcoumarin and 3-formyl-4-hydroxycoumarin. Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 870–875, May, 2007. |
| Keywords: | spiropyrans indole derivatives coumarin derivatives photochromic transformations spiro form merocyanine form block poly(methyl methacrylate) poly(methyl methacrylate) film |
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