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Star Polyfluorenes with a Triphenylamine‐Based Core
Author(s) -
Sun Minghao,
Fu Yaqin,
Li Jing,
Bo Zhishan
Publication year - 2005
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200500152
Subject(s) - triphenylamine , monomer , condensation polymer , polymer chemistry , polymer , fluorene , suzuki reaction , materials science , conjugated system , star (game theory) , boronic acid , star polymer , polyfluorene , thermal stability , chemical engineering , palladium , copolymer , combinatorial chemistry , chemistry , organic chemistry , catalysis , composite material , physics , engineering , astrophysics
Summary: Conjugated three‐ and four‐arm star polymers were successfully prepared by palladium catalyzed one‐pot Suzuki polycondensation of the multifunctional cores and an AB‐type monomer. The molecular weight of the star polymers could be controlled by the feed ratios of the monomers. The bromo end groups could be completely modified by fluorene mono boronic acid or triphenylamine mono boronic ester. The investigation of the optical, electrochemical, and thermal properties of the star polymers was also reported. All polymers exhibited good thermal stabilities and all the TPA‐capped polymers showed good hole‐transport abilities.Preparation of three‐ and four‐arm star polyfluorences.