Multiarm Star Block and Multiarm Star Mixed-Block Copolymers via Azide-Alkyne Click Reaction


Durmaz H., Dag A. , Erdogan E., Demirel A. L. , Hızal G., Tunca Ü.

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, cilt.48, ss.99-108, 2010 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 48 Konu: 1
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1002/pola.23765
  • Dergi Adı: JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
  • Sayfa Sayıları: ss.99-108

Özet

The synthesis of multiarm star block (and mixed-block) copolymers are efficiently prepared by using Cu(I) catalyzed azide-alkyne click reaction and the arm-first approach. alpha-Silyl protected alkyne polystyrene (alpha-silyl-alkyne-PS) was prepared by ATRP of styrene (St) and used as macroinitiator in a crosslinking reaction with divinyl benzene to successfully give multiarm star homopolymer with alkyne periphery. Linear azide end-functionalized poly(ethylene glycol) (PEG-N-3) and poly (tert-butyl acrylate) (PtBA-N-3) were simply clicked with the multiarm star polymer described earlier to form star block or mixed-block copolymers in N,N-dimethyl formamide at room temperature for 24 h. Obtained multiarm star block and mixed-block copolymers were identified by using H-1 NMR, GPC, triple detection-GPC, atomic force microscopy, and dynamic light scattering measurements. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 99-108, 2010