ABC-type hetero-arm star terpolymers through "click" chemistry

Ozcan Altintas, Gurkan Hizal, Umit Tunca

Research output: Contribution to journalArticlepeer-review

181 Scopus citations

Abstract

Hetero-arm star ABC-type terpolymers, poly(methyl methacrylate)- polystyrene-poly(tert-butyl acrylate) (PMMA-PS-RBA) and PMMA-PS-poly(ethylene glycol) (PEG), were prepared by using "Click" chemistry strategy. For this, first, PMMA-b-PS with alkyne functional group at the junction point was obtained from successive atom transfer radical polymerization (ATRP) and nitroxide-mediated radical polymerization (NMP) routes. Furthermore, PtBA obtained from ATRP of tBA and commercially available monohydroxyl PEG were efficiently converted to the azide end-functionalized polymers. As a second step, the alkyne and azide functional polymers were reacted to give the hetero-arm star polymers in the presence of CuBr/N,N,N′,N″,N″- pentamethyldiethylenetriamine (PMDETA) in DMF at room temperature for 24 h. The hetero-arm star polymers were characterized by 1H NMR, GPC, and DSC.

Original languageEnglish (US)
Pages (from-to)5699-5707
Number of pages9
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume44
Issue number19
DOIs
StatePublished - Oct 1 2006

Keywords

  • Alkyne
  • Atom transfer radical polymerization
  • Azide
  • Click chemistry
  • Hetero-arm star polymers
  • Nitroxide-mediated radical polymerization

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