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Synthesis of nanocomposites by in situ ethylene polymerization

Abstract:

This paper aims is to synthesize nanocomposites by in situ ethylene polymerization using Cp2ZrCl2/MAO as a catalyst system with hydroxyapatite (HA) and functionalized multiwalled carbon nanotubes (MWCNTf) coated with HA. Nanoparticles of HA with needle morphology were synthetized by chemical precipitation method. The MWCNT were functionalized with a 3:1 mixture H2SO4: HNO3 at 80°C for 30 min. HA-MWCNTf nanocomposites were synthesized by the chemical precipitation method with and without surfactant (sodium dodecylsulfate, SDS) incorporating 1% of MWCNT. FT-IR spectra presented shifts of the bands in the phosphate groups of HA in the HA-NTCPMf.