Naslov
Modification of Copper with Self-Assembled Organic Coatings

Autori
Petrović, Željka ; Metikoš-Huković, Mirjana ; Babić, Ranko

Izvornik
Progress in Organic Coatings (0300-9440) 61 (2008), 1; 1-6

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
self-assembled monolayer; n-alkanethiols; copper; corrosion protection

Sažetak
Self-assembled monolayers of n-alkanethiols (CH3(CH2)n-1SH ; n = 12 and 18) were prepared on a copper surface, and the quality and protection efficiency of resulting coatings against aqueous corrosion of copper were investigated. A combination of physical (scanning electron microscopy, energy dispersive X-ray spectroscopy, and contact angle measurements) and electrochemical (cyclic voltammetry and impedance spectrometry) methods was used to correlate the structure of the coatings with their barrier properties during exposures in an aqueous solution. Impedance results reveal that the coatings behave almost like an ideal dielectric, with a resistance of several MOhm cm2 and a coating capacitance that agree well with the value calculated according to the theory of dielectrics. Protection efficiency of chemisorbed alkanethiol coatings determined from dc and ac measurements were above 99 %.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA