Tri- and Tetracarbanionic Initiators by a Lithium/Halide Exchange Reaction: Application to Star-Polymer Synthesis

Tri- and Tetracarbanionic Initiators by a Lithium/Halide Exchange Reaction: Application to Star-Polymer Synthesis

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 polystyre...

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Veröffentlicht in:Angewandte Chemie International Edition 2004-12, Vol.44 (2), p.284-287
Hauptverfasser: Matmour, Rachid, Lebreton, Arnaud, Tsitsilianis, Constantinos, Kallitsis, Ioannis, Héroguez, Valérie, Gnanou, Yves
Format: Artikel
Sprache:eng
Schlagworte:
carbanions
Chemical Sciences
copolymerization
living polymerization
metalation
Polymers
star polymers
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Zusammenfassung: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.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200461056