Measurement of the Kinetics of Photo-Oxidation of Self-Assembled Monolayers Using Friction Force Microscopy

Langmuir ◽  
2005 ◽  
Vol 21 (9) ◽  
pp. 3903-3909 ◽  
Author(s):  
Karen S. L. Chong ◽  
Shuqing Sun ◽  
Graham J. Leggett
Keyword(s):  
Friction Force ◽  
Self Assembled Monolayers ◽  
Friction Force Microscopy ◽  
Force Microscopy ◽  
Photo Oxidation ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Kinetics Of

Preparation and Characterization of γ-Aminopropyltrimethoxysilane and Octadecyltrichlorosilane Self-Assembled Monolayers on Titanium Films

2008 ◽  
Vol 373-374 ◽  
pp. 472-475 ◽  
Author(s):  
C.G. Sun ◽  
Hui Chen Zhang
Keyword(s):  
Ultraviolet Radiation ◽  
Friction Force ◽  
Self Assembled Monolayers ◽  
Sliding Velocity ◽  
Friction Property ◽  
Titanium Film ◽  
Photochemical Process ◽  
Force Microscopy ◽  
Assembled Monolayers ◽  
Self Assembled

In this work, the self-assembled monolayers of γ-aminopropyltrimethoxysilane and octadecyltrichlorosilane were prepared on titanium films, radiated and solidified by ultraviolet radiation/ozone photochemical process. The characterization and friction properties of titanium film, APS SAMs, OTS SAMs and the radiated APS SAMs, OTS SAMs were explored by atomic force microscopy and friction force microscopy. The effects of functional groups, sliding velocity, load and ultraviolet radiation/ozone photochemical process on friction properties of SAMs were analyzed. The experimental results show that the titanium film coated with SAMs, especially under ultraviolet radiation/ozone, is exhibited with a good friction property. The friction property of APS SAMs is better than OTS SAMs under or no ultraviolet radiation/ozone. The friction force increases with the increasing of sliding velocity and decreases with the increasing of load.

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