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Synthesis and properties of polyfluorenes with phenyl substituents

Lars J. Lindgren (Institutionen för kemi- och bioteknik, Polymerteknologi) ; X Wang ; O. Inganaes ; Mats R. Andersson (Institutionen för kemi- och bioteknik, Polymerteknologi)
Synthetic Metals Vol. 154 (2005), 1-3, p. 97-100.
[Konferensbidrag, refereegranskat]

Two new, alkoxyphenyl-substituted polyfluorenes, poly(9,9-bis(4'-hexyloxyphenyl)fluorene) and poly(9,9-bis(4'-hexyloxyphenyl)fluorene-alt-9,9-bis(4'-(2''-(2'''-methoxyethoxy)ethoxy)phenyl)fluorene), were synthesized using the Suzuki coupling reaction. The polymers were designed to obtain stable and efficient materials for light-emitting applications. Both polymers exhibit high PL-efficiencies and show PL- and EL-emission in the blue spectral region, with emission maxima in a narrow range around 427 nm. Annealing (200 DegC, 2 h) of polymer films exposed to normal indoor light in ambient atm., results in an addnl. emission band at higher wavelengths, indicating degrdn. by photo oxidn. [on SciFinder (R)]

Nyckelord: Electroluminescent devices, Luminescence, Luminescence (prepn. and properties of blue light-emitting polyfluorenes with Ph substituents for LED application), polyfluorene phenyl substituent prepn LED application, photoluminescence polyfluorene phenyl substituent, electroluminescence polyfluorene phenyl substituent



Denna post skapades 2006-08-25.
CPL Pubid: 11714

 

Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Polymerteknologi (2005-2014)

Ämnesområden

Polymerkemi

Chalmers infrastruktur