Polyethylene/thermally reduced graphite oxide (TRG) composites were synthesized under mild conditions (1 atm ethylene and 40 C) using (n-BuCp) 2ZrCl2 activated with methylaluminoxane (MAO) as the polymerization catalyst. The composites were characterized by differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), high temperature gel permeation chromatography (GPC), and light microscopy. Although the thermal properties of the aforementioned composites were relatively unchanged when compared to polyethylene, significant enhancements in the mechanical properties were observed (e.g., up to 57% increase in the tensile strength and 170% increase the Young's modulus for composites containing 5.2 wt% TRG).
Bibliographical noteFunding Information:
We gratefully acknowledge the National Science Foundation ( DMR-0907324 ), the Robert A. Welch Foundation ( F-0046 ) and the World Class University program (R31-10013) as administered through the National Research Foundation of Korea and funded by the Ministry of Education, Science, and Technology . We also thank the Microscopy and Imaging Facility of the Institute for Cellular and Molecular Biology at The University of Texas at Austin for the use of their facilities.
National Science Foundation, Robert A. Welch Foundation, National Research Foundation of Korea.
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