Modifications to the improved HyperMac synthesis enabled the construction of polybutadiene AB(_2) macromonomers, resulting in polybutadiene HyperMacs; as well as triblock copolymer AB(_2) macromonomers constructed from polystyrene and polyisoprene forming block copolymer HyperMacs termed HyperBlocks. Their rheological behaviour agreed well with the Cayley tree model for hierarchical relaxation in tube models of branched polymers. HyperBlocks […]