Protection of iron corrosion by ultrathin two-dimensional polymer films of an alkanethiol monolayer modified with alkylethoxysilanes

被引：62

作者：

Aramaki, K ^{[1
]}

机构：

[1] Keio Univ, Fac Sci & Technol, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan

来源：

CORROSION SCIENCE | 1999年 / 41卷 / 09期

关键词：

iron; polarization; XPS; atmospheric corrosion; polymer coatings;

D O I：

10.1016/S0010-938X(99)00008-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An ultrathin two-dimensional polymer film adsorbed on an iron surface was prepared by modification of an 11-mercapto-1-undecanol HS(CH2)(11)OH monolayer with 1,2-bis(triethoxysilyl)ethane (C2H5O)(3)Si(CH2)(2)Si(OC2H5)(3) and subsequently with octadecyltriethoxysilane C18H37Si(OC2H5)(3). The him was characterized by X-ray photoelectron and FTIR reflection spectroscopy, and contact angle measurement. The protective efficiency of this film, determined by polarization and impedance measurements of an iron electrode in an aerated 0.5 M NaCl solution, was markedly high (98.1%). X-ray photoelectron spectra of the iron surface coated with this film after exposure to indoor air for 60 days revealed protection against atmospheric corrosion of iron. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1715 / 1730

页数：16

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