Surface Modification with Functionalized Self-Assembly and Surface Characterization by Lateral Force Microscopy
作者:
Yun Kim,
Kwang-Salk Kim,
期刊:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
(Taylor Available online 1998)
卷期:
Volume 316,
issue 1
页码: 123-128
ISSN:1058-725X
年代: 1998
DOI:10.1080/10587259808044473
出版商: Taylor & Francis Group
关键词: surface modification;functionalized alkanethiolate;self-assembly;lateral force microscopy;microcontact printing;friction
数据来源: Taylor
摘要:
Elastomeric poly(dimethylsiloxane) (PDMS) stamps were used for micro-contact printing (μ-CP) to pattern the adsorption of alkanethiolates on surfaces of gold on a scale of submicron. With this printing, organic surfaces patterned with well-defined regions exhibiting different chemical and physical properties have been produced. Au-coated mica substrates were treated with functionalized thiols to produce self-assembled monolayer (SAM) surfaces terminating with Br and OH groups by μ-CP method. Lateral force microscopy (LFM) has been utilized to characterize the adhesive interactions between substrates and probe tips that had been functionalized with SAMs which terminate with Br and COOH groups, respectively. LFM data exhibit that friction force between the probe tip and sample surfaces strongly depends on the functionality of both surfaces. This approach can be served as a method for mapping more complex and chemically heterogeneous surfaces.
点击下载:
PDF (741KB)
返 回