Enhanced Lubricity in Mixed Alkanethiol Monolayers

The frictional properties of two-component mixed alkanethiol monolayers were investigated with frictional force microscopy. With large chain length differences, the two types of molecules segregated into large islands and reveal similar frictional properties as those of single-component monolayers....

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Bibliographic Details
Published inThe journal of physical chemistry. B Vol. 109; no. 48; pp. 22971 - 22975
Main Authors Zuo, Lu, Xiong, Ye, Xie, Xincheng, Xiao, Xudong
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 08.12.2005
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Summary:The frictional properties of two-component mixed alkanethiol monolayers were investigated with frictional force microscopy. With large chain length differences, the two types of molecules segregated into large islands and reveal similar frictional properties as those of single-component monolayers. With small chain length differences, the completely mixed monolayers display a decreased friction as compared with single-component monolayers. This observation indicates that development of gauche kinks in the top portion of the mixed monolayers can enhance lubrication rather than increase friction, perhaps due to suppression of other energy dissipation channels.
Bibliography:ark:/67375/TPS-6FQC48WZ-2
istex:0772B90E85B843E757A591BA979E0C8EC2D375FA
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1520-6106
1520-5207
DOI:10.1021/jp0532465