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New photo- and electroluminescent conjugated copolyfluorenes with 7,8,10-triarylfluoranthene units in the backboneстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 16 декабря 2016 г.
- Авторы: Keshtov M.L., Mal'tsev E.I., Marochkin D.V., Muranov A.V., Khokhlov A.R.
- Журнал: Polymer Science, Series B
- Том: 54
- Номер: 5-6
- Год издания: 2012
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 289
- Последняя страница: 296
- DOI: 10.1134/S1560090412050016
- Аннотация: A new monomer, the dibromo derivative of fluoranthene 1-[7,10-bis(4-bromophenyl)fluoranthen-8-yl]pyrene, is synthesized and used to prepare three new copolyfluorenes containing 3, 5, and 10 mol % 7,8,10-triarylfluoranthene groups via the Yamamoto reaction. The number-average molecular masses and polydispersities of the polymers vary in ranges 41900-78900 and 2.7-3.5, respectively. All polymers are soluble in common organic solvents, and their glass-transition temperatures are from 95 to 115A degrees C. Temperatures corresponding to a 10% loss in weight during heating in argon and air are in the ranges 420-435 and 405-415A degrees C, respectively. The photoluminescence spectra of the polymers exhibit strong blue emission with a maximum at 418 nm, whereas the absorption spectra show characteristic peaks at 351-357 nm. All polymers possess reversible or partially reversible redox behavior owing to high electric activity and demonstrate redox pairs at 1.51 eV (oxidation) and -2.09 eV (reduction).
- Добавил в систему: Муранов Александр Васильевич