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Spectrum-stable hyperbranched polyfluorene with photocrosslinkable group

  • Duo Feng Tang
  • , Gui An Wen
  • , Xiao Ying Qi
  • , Hong Yu Wang
  • , Bo Peng
  • , Wei Wei
  • , Wei Huang

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Two kinds of blue light-emitting hyperbranched crosslinkable polyfluorene P1 and P2 with different contents of branch unit were synthesized via the palladium-catalyzed Suzuki coupling reaction, and the linear crosslinkable polyfluorene P0 was also prepared for comparison. The molecular weight and thermal behavior of the polymers were measured by GPC, DSC and TGA. Compared with uncrosslinked P0, P1 and P2, the photoluminescence spectra of crosslinked P0, P1 and P2 were little influenced. After annealing for 3 h at 200 °C in air, the photoluminescence spectrum of P2 with higher contents of branch unit showed more excellent stability compared with that of P1 and P0. The spectrum-stable hyperbranched polyfluorene can be used in multilayer and multicolor PLED.

Original languageEnglish
Pages (from-to)4412-4418
Number of pages7
JournalPolymer
Volume48
Issue number15
DOIs
StatePublished - 13 Jul 2007
Externally publishedYes

Keywords

  • Hyperbranched
  • Photocrosslink
  • Polyfluorene

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