Статья

Time dependence of the luminescence from a polymer membrane swollen in water: Concentration and isotopic effects

N. F. BunkinBauman State Technical University, Vtoraya Baumanskaya ul. 5, Moscow, 105005, RussiaG. A. LyakhovProkhorov General Physics Institute, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 119991, RussiaВ. А. КозловBauman State Technical University, Vtoraya Baumanskaya ul. 5, Moscow, 105005, RussiaA. V. ShkirinNational Research Nuclear University MEPhI, Kashirskoe sh. 31, Moscow, 115409, RussiaI. I. MolchanovBauman State Technical University, Vtoraya Baumanskaya ul. 5, Moscow, 105005, RussiaMinh Tuan VuBauman State Technical University, Vtoraya Baumanskaya ul. 5, Moscow, 105005, RussiaI. S. BerezaBauman State Technical University, Vtoraya Baumanskaya ul. 5, Moscow, 105005, RussiaN. G. BolikovBauman State Technical University, Vtoraya Baumanskaya ul. 5, Moscow, 105005, RussiaV. L. FouilheEcole Nationale Superieure des Mines, CMP-EMSE, MINES Saint-Etienne 880, route de Mimet F-13541, Gardanne, 13541, FranceIgor S. GolyakBauman MSTU Center of Applied Physics, Vtoraya Baumanskaya ul. 5, Moscow, 105005, RussiaIlya S. GolyakBauman MSTU Center of Applied Physics, Vtoraya Baumanskaya ul. 5, Moscow, 105005, RussiaИ. Л. ФуфуринBauman MSTU Center of Applied Physics, Vtoraya Baumanskaya ul. 5, Moscow, 105005, RussiaВ. С. ГореликBauman State Technical University, Vtoraya Baumanskaya ul. 5, Moscow, 105005, RussiaE. V. UspenskayaLebedev Physical Institute of the Russian Academy of Sciences, Leninskiy pr. 53, Moscow, 119991, RussiaHa‐Quyen NguyenInstitute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan Street, Hanoi, VietnamSergey V. GudkovLobachevsky State University of Nizhni Novgorod, pr. Gagarina 23, Nizhni Novgorod, 603950, Russia

2017en

ABI

Аннотация

The effect of UV irradiation of the surface of a Nafion polymer electrolyte membrane swollen in water in the pump grazing incidence geometry has been experimentally investigated. The photoluminescence from the Nafion surface has been measured in the spectral range characteristic of this polymer. The photoluminescence signal from a polymer with a variable isotopic composition is found to be sensitive to swelling in water. The spectral absorption lines of dry and water-swollen Nafion samples are characterized. It is shown that the luminescence centers in the polymer are sulfonic acid groups located on the ends of perfluorovinyl ether groups, which form the teflon base. Measurements of the temporal dynamics of the luminescence of these groups have revealed an informationally important and significant dependence of the luminescence parameters on the degree of Nafion swelling. A pronounced and nontrivial dependence of these parameters on the content of heavy isotope D2O in water is also found.

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Идентификаторы

DOI: 10.3103/s1541308x17040045

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar