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Blue light‐emitting poly( p ‐phenylenevinylene) derivative with oxadiazole and carbazole pendant groups
Author(s) -
Mikroyannidis John A.
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.24175
Subject(s) - carbazole , oxadiazole , copolymer , polymer chemistry , materials science , divinylbenzene , band gap , condensation polymer , polymer , pendant group , photochemistry , terphenyl , chemistry , styrene , organic chemistry , optoelectronics , composite material
A blue light‐emitting statistical poly( p ‐phenylenevinylene) (PPV) copolymer with hole‐transporting carbazole and electron‐transporting oxadiazole pendant groups attached to the kinked m ‐terphenyl unit was prepared by Heck coupling between 1,4‐divinylbenzene and dibromides. The latter were synthesized through pyrylium salts. The polymer had optical band gap of 2.89 eV and emission maximum at 446 nm in THF solution and 434 nm in thin film. It showed a pure blue emission with no aggregates or excimers formed even in solid state because of the long and bulky pendant groups. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 3842–3849, 2006