Preparation of Crosslinked Poly(2-bromoethyl methacrylate) Microspheres and Decoration of Their Surfaces with Functional Polymer Brushes

Karagöz B., GUNES D., BICAK N.

MACROMOLECULAR CHEMISTRY AND PHYSICS, vol.211, no.18, pp.1999-2007, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 211 Issue: 18
  • Publication Date: 2010
  • Doi Number: 10.1002/macp.201000137
  • Journal Name: MACROMOLECULAR CHEMISTRY AND PHYSICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1999-2007
  • Istanbul Technical University Affiliated: Yes

Abstract

Synthesis and crosslinking copolymerization of 2-bromoethylmethacrylate in aqueous suspension is described for preparing bromoalkyl-functional microbeads (125-420 mu m). Highly transparent microspheres with a density of accessible bromoethyl groups of 1.55 mmol.g(-1) were prepared in the suspension, stabilized with poly(N-vinyl pyrrolidone), by using methyl methacrylate as diluting co-monomer and ethylene glycol dimethacrylate as crosslinker. Bromoalkyl groups on the microparticles were employed as initiation sites for either surface-initiated ATRP of glycidyl methacrylate or ring-opening polymerization of 2-methyl-2-oxazoline to generate epoxy-and N-acetylethyleneimine-functional hairy grafts, tethered to the particle surfaces with hydrolytically stable linkages.