2005•Gōsei jushiRequires access

Grafting of LLDPE with Maleic Anhydride by Reactive Extrusion

Binghai Li

Abstract

The melt grafting of maleic anhydride (MAH) onto linear low density polyethylene(LLDPE) was initiated by dicumyl peroxide(DCP) in a twin screw extruder.The IR spectra showed MAH was successfully grafted onto LLDPE backbone.The effects of initiator and maleic anhydride concentrations,rotating velocity and temperature on grafting reaction were investigated.Maleic anhydride-styrene multi-monomer melt grafting onto LLDPE was also discussed.The research result indicated that styrene could improve grafting degree remarkably when the initiator concentration was less.

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Key concepts: Linear low-density polyethylene, Maleic anhydride, Reactive extrusion, Grafting, Materials science, Polymer chemistry, Styrene, Benzoyl peroxide