H-shaped (ABCDE type) quintopolymer via click reaction [3 + 2] strategy

Eda Gungor, Hakan Durmaz, Gurkan Hizal, Umit Tunca*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

57 Citations (Scopus)


H-shaped quintopolymer containing different five blocks: poly(e-caprolactone) (PCL), polystyrene (PS), poly(ethylene glycol) (PEG), and poly(methyl methacrylate) (PMMA) as side chains and poly(tert-butyl acrylate) (PtBA) as a main chain was simply prepared from a click reaction between azide end-functionalized PCL-PS-PtBA 3-miktoarm star terpolymer and PEG-PMMA-block copolymer with alkyne at the junction point, using Cu(I)/N,N,N′,N″, N″-pentamethyldiethylenetriamine (PMDETA) as a catalyst in DMF at room temperature for 20 h. The H-shaped quintopolymer was obtained with a number-average molecular weight (Mn) around 32,000 and low polydispersity index (Mw/Mn) 1.20 as determined by GPC analysis in THF using PS standards. The click reaction efficiency was calculated to have 60% from 1H NMR spectroscopy.

Original languageEnglish
Pages (from-to)4459-4468
Number of pages10
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Issue number13
Publication statusPublished - 1 Jul 2008


  • Atom transfer radical polymerization (ATRP)
  • H-shaped polymer
  • Nitroxide mediated radical polymerization
  • Nonlinear polymer
  • Poly(ε-caprolactone)
  • Poly(-ethylene glycol)
  • Poly(methyl methacrylate)
  • Poly(tert-butyl acrylate)
  • Polystyrene


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