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Synthesis of novel linear PEO-b-PS-b-PCL triblock copolymers by the combination of ATRP, ROP, and a click reaction

  • Xiaohua He*
  • , Liyuan Liang
  • , Meiran Xie
  • , Yiqun Zhang
  • , Shaoliang Lin
  • , Deyue Yan
  • *Corresponding author for this work
  • East China Normal University
  • East China University of Science and Technology
  • Shanghai Jiao Tong University

Research output: Contribution to journalArticlepeer-review

Abstract

A new strategy to synthesize a series of well-defined amphiphilic PEO-b-PS-b-PCL block copolymers is presented. First, bromine-terminated diblock copolymers PEO-b-PS-Br are prepared by ATRP of styrene, and converted into azido-terminated PEO-b-PS-N3 diblock copolymers. Then propargyl-terminated PCL is prepared by ROP of ε-caprolactone. The PEO-b-PS-b-PCL triblock copolymers with M̄n from 1.62 × 104 to 1.96 × 104 and a narrow PDI from 1.09 to 1.19 are finally synthesized from these precursors. The structures of these triblock copolymers and their precursors have been characterized by NMR, IR, and GPC analysis.

Original languageEnglish
Pages (from-to)1797-1802
Number of pages6
JournalMacromolecular Chemistry and Physics
Volume208
Issue number16
DOIs
StatePublished - 20 Aug 2007

Keywords

  • Atom transfer radical polymerization (ATRP)
  • Block copolymers
  • Click reaction
  • Ring-opening polymerization

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