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

Daisuke Yoshii; Hidenori Murata; Kenichi Oyaizu; Makoto Yuasa

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

Daisuke Yoshii^*, Hidenori Murata, Kenichi Oyaizu, Makoto Yuasa

^*Corresponding author for this work

Research output: Contribution to conference › Paper › peer-review

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 language	English
Number of pages	1
Publication status	Published - 2006 Dec 1
Externally published	Yes
Event	55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan Duration: 2006 Sept 20 → 2006 Sept 22

Other

Other	55th Society of Polymer Science Japan Symposium on Macromolecules
Country/Territory	Japan
City	Toyama
Period	06/9/20 → 06/9/22

Keywords

Block copolymerization
Copolymerization
Oxidative polymerization
Poly(phenylene ether)

ASJC Scopus subject areas

Engineering(all)

Cite this

@conference{7320a887bd0d4370b3f43affd9f46f37,

title = "Synthesis and polymerization mechanism of poly(phenylene ether) diblock copolymers",

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.",

keywords = "Block copolymerization, Copolymerization, Oxidative polymerization, Poly(phenylene ether)",

author = "Daisuke Yoshii and Hidenori Murata and Kenichi Oyaizu and Makoto Yuasa",

year = "2006",

month = dec,

day = "1",

language = "English",

note = "55th Society of Polymer Science Japan Symposium on Macromolecules ; Conference date: 20-09-2006 Through 22-09-2006",

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TY - CONF

T1 - Synthesis and polymerization mechanism of poly(phenylene ether) diblock copolymers

AU - Yoshii, Daisuke

AU - Murata, Hidenori

AU - Oyaizu, Kenichi

AU - Yuasa, Makoto

PY - 2006/12/1

Y1 - 2006/12/1

N2 - 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.

AB - 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.

KW - Block copolymerization

KW - Copolymerization

KW - Oxidative polymerization

KW - Poly(phenylene ether)

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M3 - Paper

AN - SCOPUS:33846124582

T2 - 55th Society of Polymer Science Japan Symposium on Macromolecules

Y2 - 20 September 2006 through 22 September 2006

ER -

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

Abstract

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Keywords

ASJC Scopus subject areas

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