Synthesis and polymerization mechanism of poly(phenylene ether) diblock copolymers

Daisuke Yoshii, Hidenori Murata, Kenichi Oyaizu, Makoto Yuasa

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

Oxidative polymerization of 2,6-dimethylphenol catalyzed by copper-amine complexes provides a convenient method to synthesize poly(2,6-dimethyl-1,4- phenylene ether) (PPE). Based on the mechanism of polymerization and depolymerization of PPE, it was anticipated that PPE block copolymers should be obtained. In this work, the behavior of polymerization, and the structure of the resulting copolymers were investigated. The depolymerization of PPE with oligo(2,6-difluoro-1,4-phenylene ether) using a CuCl2/N,N,N′, N′-tetramethylethylenediamine catalyst was accomplished to produce the corresponding copolymer. Structural analyses using NMR, DSC, and XRD revealed that the polymer was a block copolymer. During the depolymerization reaction, an intermediate phenoxyl radical was observed by ESR. The depolymerization with other oligomeric PPE will be discussed.

Original languageEnglish
Number of pages1
Publication statusPublished - 2006 Dec 1
Event55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan
Duration: 2006 Sep 202006 Sep 22

Other

Other55th Society of Polymer Science Japan Symposium on Macromolecules
CountryJapan
CityToyama
Period06/9/2006/9/22

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Keywords

  • Block copolymerization
  • Copolymerization
  • Oxidative polymerization
  • Poly(phenylene ether)

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Yoshii, D., Murata, H., Oyaizu, K., & Yuasa, M. (2006). Synthesis and polymerization mechanism of poly(phenylene ether) diblock copolymers. Paper presented at 55th Society of Polymer Science Japan Symposium on Macromolecules, Toyama, Japan.