In this paper, the nanofriction and nanolubrication behaviors of different
MD films on the Au substrate were systematically studied. The experimental
results indicated that the MD films presented similar nanofriction properti
es when they had a same terminal. It was also found that the process of the
anionning and the depositing of a monolayer MD film on a Au substrate and
the process of decorating an alkyl-terminal to MD film surfaces were all ca
pable of lowering the frictional force and improving the nanolubrication pr
operty. Moreover, the MD film decorated with alkyl chains had lower frictio
nal forces than the undecorated MD films. Accordingly, it provided us a sig
nificant thought to seek for a new nanolubrication film. (C) 1999 Elsevier
Science S.A. All rights reserved.