Wettability and friction of CF3-terminated monolayer films on gold

被引：16

作者：

Graupe, M ^{[1
]}

Koini, T ^{[1
]}

Kim, HI ^{[1
]}

Garg, N ^{[1
]}

Miura, YF ^{[1
]}

Takenaga, M ^{[1
]}

Perry, SS ^{[1
]}

Lee, TR ^{[1
]}

机构：

[1] Univ Houston, Dept Chem, Houston, TX 77204 USA

来源：

MATERIALS RESEARCH BULLETIN | 1999年 / 34卷 / 03期

基金：

奥地利科学基金会; 美国国家科学基金会;

关键词：

thin films; atomic force microscopy; surface properties;

D O I：

10.1016/S0025-5408(99)00028-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Studies of the wettability and friction of self-assembled monolayers (SAMs) generated from the terminally fluorinated alkanethiols (CF3(CH2)(n)SH, n = 9-15) on gold are reported. These data were compared to those of SAMs generated from the non-fluorinated analogs (CH3(CH2)(n)SH, n = 9-15). The CF3-terminated SAMs were less wettable by hexadecane and methylene iodide, but surprisingly more wettable by water and glycerol than were the CH3-terminated SAMs. Measurements of friction by atomic force microscopy (AFM) revealed an approximate threefold increase in friction on the CF3-terminated films compared to the CH3-terminated films. A new model for the frictional response of fluorinated SAMs is proposed. (C) 1999 Elsevier Science Ltd.

引用

页码：447 / 453

页数：7

共 23 条

[1]

[Anonymous], AM CHEM SOC

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