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Styrene-assisted melt free radical grafting of glycidyl methacrylate onto polypropylene

✍ Scribed by Hervé Cartier; Guo-Hua Hu

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
259 KB
Volume
36
Category
Article
ISSN
0887-624X

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✦ Synopsis

The free radical grafting reactivity of glycidyl methacrylate (GMA) onto polypropylene (PP) in the molten state is low. This article shows that adding styrene as a second monomer (or comonomer) increases both the rate and yield of GMA grafting and reduces PP chain scission. The proposed mechanism is that when St is added to the PP/GMA/peroxide grafting system, St reacts first with PP macroradicals to form stable styryl macroradicals. These latter then react (or copolymerize) with GMA to form GMA grafted PP.

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