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Tri‐ and Tetracarbanionic Initiators by a Lithium/Halide Exchange Reaction: Application to Star‐Polymer Synthesis
Author(s) -
Matmour Rachid,
Lebreton Arnaud,
Tsitsilianis Constantinos,
Kallitsis Ioannis,
Héroguez Valérie,
Gnanou Yves
Publication year - 2004
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200461056
Subject(s) - polybutadiene , halide , lithium (medication) , polymer chemistry , block (permutation group theory) , polystyrene , star (game theory) , styrene , aryl halide , aryl , halogen , polymer , chemistry , materials science , polymer science , copolymer , organic chemistry , physics , medicine , geometry , mathematics , alkyl , astrophysics , endocrinology
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.