REGULARITIES OF THE DETONATION NANODIAMOND SURFACE CHLORINATION
The authors critically analyzed the literature and their own data on the methods of chlorination of diamond micropowders surface. Features of different methods of detonation nanodiamond (DND) chlorination are compared, optimal conditions of the process are revealed. It is shown that the method of gas-phase chlorination of DND with molecular chlorine at elevated temperatures is preferable for the use of DND in biomedical applications; this method also helps to reduce the concentration of metal impurities. It was found that the use of thionyl chloride and sulfuryl chloride leads to contamination of samples of DND-Cl with sulfur. It is shown that the samples of DND-Cl have the satisfactory hydrolytic stability.