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 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 49 Issue: 13
  • Publication Date: 2011
  • Doi Number: 10.1002/pola.24719
  • Journal Name: JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • 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
  • Istanbul Technical University Affiliated: Yes

Abstract

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