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http://dx.doi.org/10.7317/pk.2015.39.1.180

Synthesis and Characterization of Polypropylene-grafted Graphene Oxide via "Grafting-to" Method  

Lee, Jong-Hee (Department of Polymer Science and Engineering, Korea National University of Transportation)
Oh, Chang-Ho (Department of Polymer Science and Engineering, Korea National University of Transportation)
Lim, Jung-Hyurk (Department of Polymer Science and Engineering, Korea National University of Transportation)
Kim, Kyung-Min (Department of Polymer Science and Engineering, Korea National University of Transportation)
Publication Information
Polymer(Korea) / v.39, no.1, 2015 , pp. 180-184 More about this Journal
Abstract
PP-grafted GO was prepared by the reaction of graphene oxide (GO) containing 2-bromoisobuyryl groups and polypropylene (PP) having hydroxyl groups (PP-OH) via a "grafting-to" method. GO-Br was synthesized by the reaction of GO and 2-bromoisobutyryl bromide under a basic condition. PP-MAH was reacted with ethanolamine to produce PP-OH. The melting temperature of PP-grafted GO was shifted to the higher temperature than that of PP-OH. Also, the thermal stability of PP-grafted GO was increased as compared to PP-OH and GO. These results demonstrated that the grafted coating polymer PP was effective for enhancing the thermal stability of GO. The higher surface roughness of PP-grafted GO was resulted from the chemical attachment of PP on the surface of GO. The characterization of PP-grafted GO was conducted from Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and scanning electron microscope (SEM).
Keywords
PP-grafted GO; surface roughness; grafting-to; thermal stability; melting temperature;
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