/ R. Y. Smyslov [et al.]> // Polymer. - 2019. -
Vol. 168. - P. 185-198,
DOI 10.1016/j.polymer.2019.02.015. - Cited References: 45. - The quantum yield measurements were performed at the Center for Optical and Laser Materials Research, St. Petersburg State University. P. Avramov gratefully acknowledges the financial support of National Research Foundation of Republic of Korea under Grant No. NRF-2017R1A2B4004440. This work has been carried out using computing resources of the federal collective usage center Complex for Simulation and Data Processing for Mega-science Facilities at NRC "Kurchatov Institute"
. - ISSN 0032-3861. - ISSN 1873-2291
РУБ Polymer Science
Аннотация: Using Suzuki and Yamamoto coupling reactions, copoly-(9,9-dioctylfluorenes) (CPF) were synthesized and compared regarding their photophysical properties using the spectroscopic and ab initio DFT approaches. The CPFs were functionalized by benzo [2,3,5] thiadiazole (BT) or carbazole-3,6-diyl (3,6-Cz). The latter was used to introduce different luminophore fragments, including Nile red and 4-pyrrolidinyl-1,8-naphthalimide derivatives. The effect of the two synthesis techniques on the polymer microstructure, the influence of embedding of 3,6-Cz moieties in the polymer backbone on polymer structuring, and the impact of the end groups like novel quinoxaline-containing compounds on the luminescent properties of CPFs were investigated. By comparing electron density distribution using the ab initio DFT approach with photoluminescence, it was shown that Suzuki reaction provides a chain microstructure with individual BT fragments separated by 9,9-dioctylfluorene monomeric units, while Yamamoto reaction leads to the blocks of BT units. This effect leads to different CPF photophysical properties (absorption and emission spectra).
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Держатели документа: Russian Acad Sci, Inst Macromol Cpds, Bolshoy 31, St Petersburg 199004, Russia.
NRC Kurchatov Inst, Petersburg Nucl Phys Inst, Mkr Orlova Roscha 1, Gatchina 188300, Leningrad Regio, Russia.
Siberian Fed Univ, Svobodny 79, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Fed Res Ctr, Kirensky Inst Phys, Siberian Branch,Krasnoyarsk Sci Ctr, Akad Gorodok 50-38, Krasnoyarsk 660036, Russia.
St Petersburg State Univ, Unive Skaya Nab 7-9, St Petersburg 199034, Russia.
Yaroslavl State Tech Univ, Moskovskii 88, Yaroslavl 150023, Russia.
Kyungpook Natl Univ, Dept Chem & Greennano Mat Res Ctr, 80 Daehakro, Daegu 41556, South Korea.
Доп.точки доступа: Smyslov, Ruslan Yu; Tomilin, F. N.; Томилин, Феликс Николаевич; Shchugoreva, I. A.; Nosova, G. I.; Zhukova, E. V.; Litvinova, L. S.; Yakimansky, A. V.; Kolesnikov, I.; Abramov, I. G.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Avramov, P. V.; Аврамов, Павел Вениаминович