Studies on the Technique and Mechanism of Solid Grafting Polypropylene with Dual Monomers

Abstract

Abstract: Solid grafting is a promising grafting method, which is simple, cheap and easy to control, to get a polar polypropylene(PP). However, the achieved product may have a severe degradation and the graft ratio cannot satisfy us. In this paper, dual monomers, maleic anhydride(MAH) and tri-allyLIsocyanurate(TAIC) were used to graft onto PP. It was found that TAICwas efficient to enhance the MAHcontent of the products and prohibit PP's degradation. The MAHcontent of the product can reach 7.2% with 4%TAIC. This is prominent when it was compared with melt grafting product and normal solid grafting product. The MAHcontent and the melt flow rate(MFR) of the product can be adjusted by changing TAIC's amount. The reaction mechanism of dual monomers in the grafting polymerization and their composition in the product were also discussed.

Key words: High polar polypropylene, Solid grafting, Dual monomers

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ZHANG Li-Feng, GUO Bao-Hua, ZHANG Zeng-Min . Studies on the Technique and Mechanism of Solid Grafting Polypropylene with Dual Monomers[J]. Chem. J. Chinese Universities, 2001, 22(8): 1406.

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Studies on the Technique and Mechanism of Solid Grafting Polypropylene with Dual Monomers

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