Multiarm Star Triblock Terpolymers via Sequential Double Click Reactions


Durmaz H., Dag A., Gursoy D., Demirel A. L., Hızal G., Tunca Ü.

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, vol.48, no.7, pp.1557-1564, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 48 Issue: 7
  • Publication Date: 2010
  • Doi Number: 10.1002/pola.23925
  • Journal Name: JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1557-1564
  • Keywords: atomic force microscopy (AFM), azide-alkyne click reaction, Diels-Alder click reaction, dynamic light scattering (DLS), star polymers, triple detection-GPC, AZIDE-ALKYNE CYCLOADDITION, ONE-POT SYNTHESIS, BLOCK-COPOLYMERS, RADICAL POLYMERIZATION, MACROMOLECULAR ARCHITECTURES, MATERIALS SCIENCE, CHEMISTRY, POLYMERS, COMBINATION, ATRP
  • Istanbul Technical University Affiliated: Yes

Abstract

Multiarm star triblock terpolymers were obtained by using two different click reactions sequentially: Cu(I) catalyzed azide-alkyne and Diels-Alder. The synthetic strategy is described as follows: (poly(methyl methacrylate))(n)-(polystyrene)(m)-poly(divinyl benzene)) ((PMMA)(n)-(PS)(m)-polyDVB) multiarm star diblock copolymer was first obtained from an azide-alkyne click reaction of (alkyne-PS)(m)-polyDVB multiarm star polymer with alpha-anthracene-omega-azide PMMA (anth-PMMA-N-3), followed by a Diels-Alder click reaction of the anthracene groups at the star periphery with alpha-maleimide poly (tert-butyl acrylate) (PtBA-MI) or alpha-maleimide poly(ethylene glycol) (PEG-MI) leading to target (PtBA)(k)-(PMMA)(n)-(PS)(m)-polyDVB and (PEG)(p)-(PMMA)(n)-(PS)(m)-polyDVB multiarm star triblock terpolymers. The hydrodynamic diameter of individual multiarm star triblock terpolymers were measured by dynamic light scattering (DLS) to be similar to 24-27 nm in consistent with the atomic force microscopy (AFM) images on silicon substrates. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 1557-1564, 2010