Synthesis and Properties of Polymerization-Filled Composites Based on Polypropylene and Single-Wall Carbon Nanotubes

Composites based on polypropylene and single-wall carbon oxygen-containing nanotubes with a specific surface area of 360 and 500 m 2 /g are synthesized in the medium of liquid propylene using the catalytic system rac -Me 2 Si(2-Me-4-PhInd) 2 ZrCl 2 /МАО. Optimum polymerization conditions ensuring a fairly high rate of the process are determined, and the composites with the filler content in the range from 0.3 to 13.0 wt % are obtained. It is shown that the presence of functional groups enhances the filler agglomeration tendency during composite formation. Effects of the type of carbon nanofiller on the thermal stability, thermo-oxidative resistance, and thermal and electrophysical characteristics of the composites are studied. It is found that the filler inhibits the processes of oxidation and destruction of polypropylene crystallites.