Angewandte Chemie International Edition · 2004 · 41 citations · 16 references
Natural SciencesChemistryMaterials ScienceMaterials ChemistryPolymer ChemistryPolymer MaterialsOlefin PolymerizationPolymer ProductionPolymer StructurePolymer SynthesisPolymerization ChemistryPolymerization ProcessesBlock Copolymer SynthesisHalogen Exchange ReactionsPolymer InitiatorsPolystyreneStar Polymer ArchitectureStar Polymer SynthesisStar Polymers
A family of polycarbanionic initiators: Bis-, tris-, and tetrakisaryl lithium compounds (see scheme) were synthesized from the corresponding aryl halides by simple halogen/lithium exchange reactions. These polylithiated species were used to prepare telechelic and three- and four-armed star polystyrene and polybutadiene homopolymers, as well as poly(styrene-block-butadiene-block-methyl methacrylate) star block terpolymers.
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