Easy one-pot method to control the morphology of polyethylene/carbon nanotube nanocomposites using metallocene catalysts
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An easy one pot method is demonstrated for the controlled periodical surface coating of polyethylene over multiwalled carbon nanotubes (MWCNT) by insitu polymerization of ethylene using highly active metallocene catalysts (Cp2ZrCl2 and Cp2TiCl2) in combination with methylalumoxane. The crystallinity of the nanocomposite was increased and its morphology could be tuned from “sausage” like to “shish-kebab” in the presence of CNT depending on the experimental condition and choice of metal atom.
KeywordsCarbon nanotube Metallocene catalysts Nanocomposites Polymerization Polyolefins
Authors are thankful to King Abdullah Institute for NANO Technology, King Saud University, Riyadh for TEM analysis, and to King Abdulaziz City for Science and Technology (KACST, DRP-3-13) for project fund.