Functionalization of low molecular weight atactic polypropylenePart II. Thermal and molecular weight studies

SummaryNumber average molecular weight (Mn), intrinsic viscosity ([η]) and glass transition temperature (Tg) of low molecular weight atactic polypropylene (APP) grafted with 4-allyl-1,2-dimethoxybenzene (DMAB), 4-allyl-2-methoxyphenol (eugenol) and 4-propenylanisole (trans-anethole) in the presence of dicumyl peroxide (DCP) at 170°C were determined. The influences of reaction time, concentration and extent of grafting on Mn, [η] and Tg of APP were examined. The data were discussed with the mechanism of grafting reactions.