Chemical modification of gold surface via UV-generated aryl radicals derived 3,5-bis(trifluoromethyl)phenyl)iodonium salt; Progress in Organic Coatings; Vol. 136

Chemical modification of gold surface via UV-generated aryl radicals derived 3,5-bis(trifluoromethyl)phenyl)iodonium salt; Progress in Organic Coatings; Vol. 136

Bibliographic Details
Parent link:Progress in Organic Coatings
Vol. 136.— 2019.— [105211, p. 8]
Corporate Author: Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий
Other Authors: Guselnikova O. A. Olga Andreevna, Milyutina (Miliutina) E. V. Elena Vadimovna, Elashnikov R. Roman, Burtsev V., Chehimi M. M. Mohamed Mehdi, Svorcik V. Vaclav, Yusubov M. S. Mekhman Suleiman-Ogly (Suleimanovich), Lyutakov O. Oleksy, Postnikov P. S. Pavel Sergeevich
Summary:Title screen
In recent years, iodonium salts emerged as a unique novel class of compounds for surface modification by electrografting. Herein, we demonstrated that 3,5-bis(trifluoromethyl)phenyl)iodonium salt (IS-(CF3)2) can be applied for the modification of surfaces via generation of aryl radicals through activation by UV light, without the addition of any photoinitiators. The thickness of the organic layer was found to be close to the size of an organic radical. The as-prepared structures were characterized by XPS, wettability, Raman spectroscopy and AFM measurements. The formation of close to monomolecular layer on the surface was proved by three independent methods (AFM, XPS, and ellipsometry). UV-generated aryl radicals can also be used for simple one-step surface patterning with organic functional groups. In our contribution, we developed a convenient and easy-to-handle approach for the grafting of modified patterns. The application of IS-(CF3)2 allows controlling the distribution of surface-modified area via the application of the lithographic mask. The proposed strategy offers advantages such as strong covalent bonding of aryl radical, easiness of experimental procedure in combination with the possibility to control surface architecture.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2019
Subjects:
труды учёных ТПУ
электронный ресурс
iodonium salts
surface modification
surface patterning
photocatalysis
organic layers
соли
модификации
поверхности
органические составляющие
Online Access:https://doi.org/10.1016/j.porgcoat.2019.105211
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=660987

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