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Effect of oligothiophene substituents on the photophysical and photochromic properties of a naphthopyran

✍ Scribed by Ortica, Fausto; Smimmo, Paola; Favaro, Gianna; Mazzucato, Ugo; Delbaere, St�phanie; Venec, David; Vermeersch, Gaston; Frigoli, Michel; Moustrou, Corinne; Samat, Andr�


Book ID
120771648
Publisher
Royal Society of Chemistry
Year
2004
Tongue
English
Weight
370 KB
Volume
3
Category
Article
ISSN
1474-905X

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Polymeric siloxanes with a substituent a
✍ Ren Nakao; Norikazu Ueda; Yasuo Abe; Toyokazu Horii; Hiroo Inoue 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 314 KB 👁 2 views

Oligomeric polysiloxanes having the spirobenzopyran moiety and various substituents were prepared. The polymers were photochromic; the color changed from colorless to red on U V irradiation and the color faded on visible irradiation or on standing in the dark. The thermal decoloration was depressed