The reaction of silicon-nitrogen compounds with hydroxyl-terminatedsilicone oil in the absence of solvent is discussed Studies of reaction kinetics showthat the reaction is of second order and the activation energy (Ea) is about44 kJ／mol．The reaction rate increases with the increase of nitrogen content

the bigratio of N to Si and the large tensility of cyclosiliazane．The introduction of phenyl to silicon results in the decrease in the reaction rate The effect of temperature on thereaction rate iS also discussed．