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6762819 
Journal Article 
Improvement in Polar Characteristics of Polyethylene Wax by Grafting with Styrene-Maleic Anhydride 
Kim, J; Song, J; Im, M; Kim, H; Kim, J; Kim, HIl; , 
2018 
1 
Polymer - Korea
ISSN: 0379-153X 
POLYMER SOC KOREA 
SEOUL 
539-543 
WOS:000439955700001 
Polar functional polyethylene wax was prepared by grafting maleic anhydride and styrene monomers on non polar polyethylene wax which was produced by pyrolysis process. The acidity variation of polyethylene wax was investigated depending on the graft reaction variables. The polar functional polyethylene wax, which was prepared by grafting via alternating copolymerization of styrene and maleic anhydride, showed the significantly higher acid value compared to the polyethylene wax grafted with maleic anhydride alone. As the anhydride group of polar functional polyethylene wax was hydrolyzed to form carboxylic acid groups, the acid value of hydrolyzed functional polyethylene wax increased further. Due to the effect of initiator decomposition temperature, dicumyl peroxide resulted in the higher acid value of polyethylene wax in the grafting with maleic anhydride alone. On the other hand, benzoyl peroxide resulted in the higher acid value of polyethylene wax in the grafting with maleic anhydride and styrene together at lower temperature.