A series of symmetric star polymer melts were synthesized with arm molecular weightsvarying between 10 000 and 80 000 g mol-1. Each sample had a three-arm architecture and waspredominately made up of 1,2 enchained polybutadiene repeat units. A portion of each sample washydrogenated to give the corresponding poly(1-butene) material. Mechanical analysis was carried out onboth the parents and saturated analogues. Results obtained from these rheological investigations werecompared to theoretical predictions calculated using the Milner−McLeish theory and found to agree wellover the frequency range employed, for both “parent” and “daughter” products.