Abstract—Polypropylene (PP) was functionalized with maleic anhydride (MAH) in the presence of dicumyl peroxide (DCP) via melt grafting in a batch mixer, where the maleic anhydride and peroxide concentrations were varied. The effect of concentration of monomer and initiator on the degree of functionalization and properties of the products was investigated by FT-IR spectroscopy, contact angle measurement, thermal analysis and titration. It was found that the degree of functionalization depends on the initial concentration of monomer and initiator that used in reaction. Finally a mechanism of melt grafting MAH onto PP proposed on the basis of our experimental results and other experimental finding published in the literature.
Index Terms—Characterization, modification, PP.
A. R. Oromiehie and S. Mirbagheri are with the Iran Polymer and Petrochemical Institute of Tehran, Iran (e-mail: a.oromiehie@ippi.ac.ir, a.oromiehie@ippi.ac.ir).
H. Ebadi-Dehaghani is with the Shahrza Branch, Islamic Azad University (e-mail: ebadi@iaush.ac.ir).
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Cite:Oromiehie A., Ebadi-Dehaghani H., and Mirbagheri S., "Chemical Modification of Polypropylene by Maleic Anhydride: Melt Grafting, Characterization and Mechanism," International Journal of Chemical Engineering and Applications vol. 5, no. 2 pp. 117-122, 2014.
