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The understanding of excited states of conjugated polymers is of great interest for photonics, especially for fabricating electroluminescent and optical devices. This work concerns the excited state absorption of three conjugated polymers: poly(2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene) (MEH-PPV), poly[2-[ethyl-[4-(4-nitro-phenylazo)-phenyl]-amino]-ethane-(3-thienyl)-ethanoate] (PAzT),...
A new family of conjugated polymers containing dibenzo[a,c]phenazine moieties, and hence having moderately high electron affinities, has been synthesized. Syntheses were achieved using Yamamoto or Suzuki couplings with 2,7-dibromodibenzo[a,c]phenazine derivatives as monomers. Several of the polymers had significant molecular weights and were still soluble in tetrahydrofuran or chloroform. A series...
The outer surface of multi-walled carbon nanotubes (MWCNTs) was successfully modified with 7-bromo-9,9-dioctylfluorene-2-carbaldehyde by using 1,3-dipolar cycloaddition of azomethine reaction to introduce bromo functional groups. The peripheral bromo functional groups can be used to further react with AB-type monomers through Suzuki polycondensation to afford the PF-functionalized MWCNTs, which are...
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