Special aspects of the photochromism of indolinospiropyranes in comb-like polymers

Autor:	V. D. Arsenov, V.S. Marevtsev, S.D. Mal'tsev, Ya.S. Freidzon, V.P. Shibayev, Cherkashin Mikhail I, N.A. Plate
Rok vydání:	1982
Předmět:	chemistry.chemical_classification Photochromism chemistry.chemical_compound chemistry General Engineering Substituent Organic chemistry Hypsochromic shift Polymer Luminescence Photochemistry Alkyl
Zdroj:	Polymer Science U.S.S.R.. 24:2635-2641
ISSN:	0032-3950
DOI:	10.1016/0032-3950(83)90443-4
Popis:	The photochromic properties of the indolinospiropyranes dissolved in poly-n-alkylmethacrylates with a different length of the alkyl substituent have been studied. In polyhexylmethacrylate a heavy hypsochromic shift of the photo-induced spectrum and also slowing of the photochemical and thermal processes were found. Study of polarized luminescence demonstrated the existence in polyhexylmethacrylate of the trans -isomer of the coloured form of the spiropyrane differing from that found in other poly-n-alkylmethacrylates. To explain the result obtained model notions of photocolouring in polymer media are enlisted and the anomalous behaviour found is explained by the special nature of the highly elastic state of comb-like polymers.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6f9837c0960d7019438696940233c085 https://doi.org/10.1016/0032-3950(83)90443-4 Zobrazit plný text záznamu