Journal
CHEMISTRY LETTERS
Volume 35, Issue 12, Pages 1434-1435Publisher
CHEMICAL SOC JAPAN
DOI: 10.1246/cl.2006.1434
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Dithienylethene derivatives, which undergo thermally irreversible photochromic reactions, were applied to sensitive color dosimeters. Upon gamma-irradiation, polystyrene films containing diarylethene derivatives, such as 1,2-bis(2-methyl-5-phenyl-3-thienyl)perfluorocyclopentene (1) or 1,2-bis(5-methyl-2-phenyl-4-thiazolyl)perfluorocyclopentene (2), and fluorescent metal complexes turned blue or red. Even if the absorbed dose was as small as 10 Gy, a clear color change was observed.
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