Synthesis of polycuproorganosiloxanes with mechanochemical activation

The feasibility was examined for preparing polycuprodiphenylsiloxanes from copper acetylacetonate and diphenylsilanediol under conditions of mechanoch emical activation in an oscillatory activator at a frequency of 2.5 Hz and a load-to-packing weight ratio of 1.8. Under these conditions the component s react only partially. The fractional composition of the resulting product is nonuniform and depends on the time of mechanochemical treatment. The co mpounds were characterized by elemental analysis, IR spectroscopy, and gel chromatography.