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A Core‐First Preparation of Poly(3‐alkylthiophene) Stars
Author(s) -
Senkovskyy Volodymyr,
Beryozkina Tetyana,
Bocharova Vera,
Tkachov Roman,
Komber Hartmut,
Lederer Albena,
Stamm Manfred,
Severin Nikolai,
Rabe Jürgen P.,
Kiriy Anton
Publication year - 2010
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201050503
Subject(s) - condensation polymer , polymer chemistry , aryl , core (optical fiber) , halide , materials science , stars , catalysis , star polymer , polymer , polymer science , chemical engineering , chemistry , polymerization , organic chemistry , composite material , alkyl , computer science , engineering , computer vision
A new and facile method for the preparation of mono‐ and hexa‐functional Ni‐bipyridyl‐based initiators that mediate Kumada polycondensation of 2‐bromo‐5‐chloromagnesio‐3‐hexylthiophene into head‐to‐tail regioregular poly(3‐hexylthiophene), P3HT, has been developed. An important advantage of the catalytic system presented herein is the ease of the preparation of a number of Ar‐Nibipy‐Br initiators from readily available aryl halides. As an example, the “core‐first” synthesis of 6‐arm star‐like P3HT having a hexaphenylbenzene core is demonstrated.