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À propos de : Synthesis, Hydrogenation, and Rheology of 1,2-Polybutadiene StarPolymers        

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  • Synthesis, Hydrogenation, and Rheology of 1,2-Polybutadiene StarPolymers
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  • 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.
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