Abstract
The monomeric antioxidants 1– 3 were grafted onto low molecular weight polyethylene (LMWPE) by melt processing with free radical initiators. From the infrared spectra of the grafted LMWPE, it was found that the monomeric antioxidants were introduced onto the polymeric chain. IR spectroscopic methods were used for the quantitative determination of the extent of grafting of monomeric antioxidant. To optimize the reaction conditions, the influences of the concentration of initiator, monomeric antioxidant, reaction time and temperature on the extent of grafting were speculated.
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