Abstract
Diamond is a material, which has been widely investigated because of its various unique properties such as electrical, thermal and mechanical properties. Chemical modifications of the diamond surfaces have been expected to lead improvement of its original behavior. We can find recent studies on chemical modification with various organic functional groups on the surface of diamond films and powders terminated with hydrogen or oxygen by using photo- and thermochemical methods. On the other hand, Introduction of substituents containing fluorine atom would result in improvement of the behavior of diamond surfaces, which is enhanced lubricity and stability under extreme conditions. Previously we reported that photolysis of perfluoroazooctane gave perfluorooctyl radicals effectively under mild conditions for perfluoroalkylation of organic compounds. In this paper, we report on a useful method for chemical modification of diamond powders with perfluoroalkyl substituent by using photolysis of perfluoroazooctane under mild condition.
