Preparation and Characterization of Self-assembled Monolayers of Trichlorogermanyl Propanoic Acid and Its Derivatives

Abstract

Abstract: Self-assembled monolayers(SAMs) of trichlorogermanyl propanoic acid derivatives on hydroxylated silicon subst rates are prepared for The first time.Contac TANGle measurement, ellip-sometry and X-ray photoelectron spectrometry(XPS)are used to characterize these SAMs.It is demonst rated that a quasi 2-D network is formed on the surface of the substrate after molecules ad-sorbed on it.The molecular chains have certain til TANGles to The subst rate surface.The wettabili-ties of The SAMs are various, because The molecules adsorbed and liquids used in The experiment sare different.It can be concluded that trichlorogermanes have similar self-assembly behavior as trichlorosilanes.Four SAMs are st udied togeTher:They are acid, ethyl, butyl and hexyl surfaces whose results are of good consistency.

Key words: Trichlorogermanyl propanoic acid, Self-assembled monolayers, Wettability

CLC Number:

O647

TrendMD:

XU Ran, REN Yan-Zhi, LI Wei, XI Shi-Quan, TIAN Yan-Qing . Preparation and Characterization of Self-assembled Monolayers of Trichlorogermanyl Propanoic Acid and Its Derivatives[J]. Chem. J. Chinese Universities, 1999, 20(1): 97.

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Preparation and Characterization of Self-assembled Monolayers of Trichlorogermanyl Propanoic Acid and Its Derivatives

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