Synthesis and characterization of well-defined ABC-type triblock copolymers via atom transfer radical polymerization and stable free-radical polymerization

U. Tunca, T. Erdogan, G. Hizal*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)

Abstract

An asymmetric difunctional initiator 2-phenyl-2-[(2,2,6,6 tetramethylpiperidino)oxy] ethyl 2-bromo propanoate (1) was used for the synthesis of ABC-type methyl methacrylate (MMA)-tert-butylacrylate (tBA)-styrene (St) triblock copolymers via a combination of atom transfer radical polymerization (ATRP) and stable free-radical polymerization (SFRP). The ATRP-ATRP-SFRP or SFRP-ATRP-ATRP route led to ABC-type triblock copolymers with controlled molecular weight and moderate poly-dispersity (Mw/Mn < 1.35). The block copolymers were characterized by gel permeation chromatography and 1H NMR. The retaining chain-end functionality and the applying halide exchange afforded high blocking efficiency as well as maintained control over entire routes.

Original languageEnglish
Pages (from-to)2025-2032
Number of pages8
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume40
Issue number12
DOIs
Publication statusPublished - 15 Jun 2002

Keywords

  • Atom transfer radical polymerization (ATRP)
  • Stable free-radical polymerization (SFRP)
  • Triblock copolymer

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