On the Fabrication of Hydrophobic Coatings by Polycondensation of Fluoroalkylalkoxysilanes

V. A. Benderskii; Бендерский В. А.; I. P. Kim; Ким И. П.; N. N. Dremova; Дремова Н. Н.

doi:10.31857/S0023119323020055

On the Fabrication of Hydrophobic Coatings by Polycondensation of Fluoroalkylalkoxysilanes

作者: Benderskii V.A.¹, Kim I.P.¹, Dremova N.N.¹
隶属关系:
1. Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences
期: 卷 57, 编号 2 (2023)
页面: 120-124
栏目: НАНОРАЗМЕРНЫЕ СИСТЕМЫ И МАТЕРИАЛЫ
URL: https://bakhtiniada.ru/0023-1193/article/view/139980
DOI: https://doi.org/10.31857/S0023119323020055
EDN: https://elibrary.ru/NGQLTX
ID: 139980

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详细

It has been shown that for obtaining hydrophobic coatings, it is reasonable to use fluoroalkylalkoxysilanes (FASs) with a longer fluoroalkyl chain than FAS-19, so that the F/Si molar ratio exceeds 5–6. It is proposed to purposefully change not only the chain length of oligomers, but also the structure of solutions from dilute colloidal solutions to structured gels, with the F/Si ratio being controlled. In the case of polycondensation of investigated fluoroalkylalkoxysilanes on a hydroxylated surface, a strong silicone framework is formed, which is chemically bonded to the surface and to fluoroalkyl chains oriented perpendicular to it

关键词

fluoroalkylalkoxysilanes, hydrolysis, polycondensation, F/Si molar ratio, hydrophobicity

参考

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