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process for melt grafting itaconic anhydride onto polyethylene
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Currently, extensive research in using bio-derived §polymers is being done, highlighting the importance §of sustainable, green polymeric materials. Some §sustainable alternatives to synthetic polymers §include lignin, starch, cellulose or blends of these §with petroleum-based polymers.§In this study, free radical grafting of itaconic §anhydride (IA) onto polyethylene was investigated. §IA was selected because it is capable of reacting §with polyethylene and amino acid residues, such as §lysine. The objective of the research was to §identify and investigate the effect of reaction §parameters on grafting. These were: residence time, §temperature, initial monomer concentration as well §as peroxide concentration and type. Grafting was §characterized in terms of the degree of grafting §(DOG), percentage reacted and the extent of side §reactions.
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