Polyfluorene method

Details Polyfluorene method Polyfluorene method

2011-05-24

2011-05-24

Truong, Duc (Department: 1765)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From hydrocarbon reactant

C528S397000, C528S398000, C528S485000, C528S488000, C528S492000

Reexamination Certificate

active

07947801

ABSTRACT:
A method of synthesizing a poly(9,9-disubstituted-fluorene) includes reacting a 9,9-disubstituted-fluorene with an alkyl lithium in the presence of a catalytic amount of a nickel amine complex. The 9,9-disubstituted-fluorene includes solubility-enhancing substituents in the 9-position and leaving groups in the 2-position and the 7-position. The product poly(9,9-disubstituted-fluorene)s are fluorescent conjugated polymers that are useful as, for example, blue light-emitting materials.

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