Add time:08/30/2019         Source:sciencedirect.com

The purpose of this contribution is to compare the quality of adsorbed films of CH3(CH2)nSiCl3 and CH3(CH2)nPO(OH)2, n=4 and 13. Mechanically polished polycrystalline titanium substrates were reacted with 10−3 M solutions of the compounds in ethanol for the n-alkanephosphonic acids and in toluene for the n-alkyltrichlorosilanes. Assessments of the films have been carried out with X-ray photoelectron spectroscopy (XPS), contact angle measurements and electrochemical impedance spectroscopy (EIS). n-Alkyltrichlorosilanes form better quality monolayers than n-alkanephosphonic acids.

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