oa South African Journal of Chemical Engineering - Synthesis of adhesive polyethylene polymers using free radical grafting in a compounding extruder
Polyolefins such as polyethylene generally show poor adhesion to metals. Chemical modification with carboxylic acids improves adhesion. Grafting itaconic anhydride onto polyethylene in a compounding extruder results in an excellent adhesive polymer; it avoids the processing problems associated with the conventional maleic anhydride method.
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