ACTIVE HYDROGEN ON THE SURFACE OF ULTRADISPERSED CARBON

The interaction between methylmagnesium iodide in anisole and surface functional groups of ultradispersed diamond-containing powders (UDD) c an be divided into three stages: interaction with molecular additives and the-external surface; interaction with the surface of open pores; and interaction with the surface exposed during mechanicochemical brea kdown of the UDD aggregates. The quantitative characteristics of the U DD surface have been determined: density of protonated groups (0.34-2. 52 mug-eq/m2) and concentration of active hydrogen (0.49-7.52 mug-eq/m 2).