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2001•Journal of Functional PolymersRequires access

Graft Copolymerization of Acrylic Acid onto Polypropylene by Suspension process

Run Wu

Open publisher page 2 citations

Abstract

Graft copolymerization of acrylic acid onto polypropylene by the suspension process has been studied in water medium using BPO as initiator. The effects of the recipes and reaction conditions on grafting rate and grafting efficiency of PP have been investigated. The results show that the optimum condition parameters are as follows:swelling time 80 min., reaction temperature 90 ℃, reaction time 90 min. in nitrogen atmosphere, AA 7%, BPO 3.3%, Xylene 25%, the ratio of H 2O/PP=3∶1, and the suitable amount (1.0%-1.7%) of TAIC is favorable to increasing grafting rate of PP. Using the PP-g-AA as a compatible agent of these composites of PP/ CaCO 3 and PP/PA6 ,the mechanical properties of the polyblends have been significantly improved.

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What this paper is about

Graft copolymerization of acrylic acid onto polypropylene by the suspension process has been studied in water medium using BPO as initiator. The effects of the recipes and reaction conditions on grafting rate and grafting efficiency of PP have been investigated. The results show that the optimum condition parameters are as follows:swelling time 80 min., reaction temperature 90 ℃, reaction time 90 min. in nitrogen atmosphere, AA 7%, BPO 3.3%, Xylene 25%, the ratio of H 2O/PP=3∶1, and the suitable amount (1.0%-1.7%) of TAIC is favorable to increasing grafting rate of PP. Using the PP-g-AA as a compatible agent of these composites of PP/ CaCO 3 and PP/PA6 ,the mechanical properties of the polyblends have been significantly improved.

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Available abstract

Graft copolymerization of acrylic acid onto polypropylene by the suspension process has been studied in water medium using BPO as initiator. The effects of the recipes and reaction conditions on grafting rate and grafting efficiency of PP have been investigated. The results show that the optimum condition parameters are as follows:swelling time 80 min., reaction temperature 90 ℃, reaction time 90 min. in nitrogen atmosphere, AA 7%, BPO 3.3%, Xylene 25%, the ratio of H 2O/PP=3∶1, and the suitable amount (1.0%-1.7%) of TAIC is favorable to increasing grafting rate of PP. Using the PP-g-AA as a compatible agent of these composites of PP/ CaCO 3 and PP/PA6 ,the mechanical properties of the polyblends have been significantly improved.

Key concepts: Polypropylene, Grafting, Copolymer, Acrylic acid, Materials science, Swelling, Suspension (topology), Polymer chemistry

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