Various Brush Polymers Through Ring Opening Metathesis Polymerization and Nitroxide Radical Coupling Reaction

Cerit N., CAKIR N., DAG A., Sirkecioğlu O. , DURMAZ H. , HIZAL G. , ...More

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, vol.49, no.13, pp.2850-2858, 2011 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 49 Issue: 13
  • Publication Date: 2011
  • Doi Number: 10.1002/pola.24719
  • Page Numbers: pp.2850-2858
  • Keywords: atom transfer radical polymerization (ATRP), brush copolymer, brush terpolymer, graft polymers, nitroxide radical coupling (NRC) click reaction, NMR, poly(epsilon-caprolactone), poly(ethylene glycol), poly(methyl methacrylate), polyoxanorbornene, ring-opening metathesis polymerization (ROMP), ring opening polymerization (ROP), triple detection GPC (TD-GPC), ONE-POT SYNTHESIS, STAR-BLOCK-COPOLYMERS, CYLINDRICAL MOLECULAR BRUSHES, DEFINED GRAFT-COPOLYMERS, CLICK CHEMISTRY, TRIBLOCK COPOLYMERS, HETEROGRAFT COPOLYMERS, POLY(ETHYLENE GLYCOL), PRECISE SYNTHESIS, TANDEM SYNTHESIS


A 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-terminated poly(ethylene glycol) (PEG) or -poly(epsilon-caprolactone) (PCL) (PEG(11)-TEMPO or PCL(23)-TEMPO) is grafted as a side chain onto a ROMP-generated polyoxanorbornene (PONB) main backbone with bromide pendant groups (PONB(20)-Br) using the NRC click reaction to yield related the brush copolymers, PONB(20)-g-PEG(11) or PONB(20)-g-PCL(23) catalyzed by Cu(I), Cu(0), and N,N,N',N '',N'''-pentamethyldiethylenetriamine in N,N-dimethylformamide at room temperature. Additionally, a ROMP-generated brush copolymer PONB(9)-g-poly(methyl methacrylate)(24) (PMMA)(24)-Cl was reacted with a PEG(11)-TEMPO or a PCL(23)-TEMPO precursor via the NRC click reaction to yield a corresponding brush terpolymer, PONB(9)-g-(PMMA(24)-b-PEG(11)) or PONB(9)-g-(PMMA(24)-b-PCL(23)) under a similar reaction condition described above. (C) 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 2850-2858, 2011