Influence of an Oxygen-Plasma Flow on Polyimide Nanocomposites

The properties of nanocomposites based on heat-resistant organosoluble copolyimide are studied. The nanocomposites are obtained by the sol−gel technique; nanoparticle formation occurs in situ in the polymer-matrix bulk. Metalloalkoxysiloxanes, namely tetrakis-(methyldiethoxysiloxy)hafnium and pentakis-(methyldiethoxysiloxy)niobium, are used as precursors of the filler phase. It is shown that the in-situ filling of copolyimide contributes to an increase in the order of material resistance to the effects of an atomic oxygen flow, reducing surface degradation during irradiation in comparison with an unfilled matrix.