Silylation of graphite oxide by dimethyloctylchlorosilane (小特集 炭素材料へのインターカレーシヨン) Silylation of graphite oxide by dimethyloctylchlorosilane
Graphite oxide was silylated by dimethyloctylchlorosilane under various conditions. Silylated graphite oxide was successfully obtained and the maximum silicon content reached 0.17 mol/graphite oxide unit when the butylamine/dimethy-loctylchlorosilane/ graphite oxide unit ratio was about 19/16/1. The above maximum silicon content was much smaller than that obtained for graphite oxide silylated by octyltrichlorosilane, probably because of the steric hindrance of methyl groups against oxygen containing groups on the surface of graphite oxide. At the same time, the smaller amount of butylamine was needed to scavenge the HC1 molecules formed as a byproduct, reflecting the smaller number of chlorine atom in the dimethy-loctylchlorosilane molecule.
炭素 (233), 115-118, 2008-06-09
THE CARBON SOCIETY OF JAPAN