Synthesis and structure of poly(phenylene ether) copolymers based on polymerization-depolymerization mechanism

Daisuke Yoshii; Kenichi Oyaizu; Makoto Yuasa

Synthesis and structure of poly(phenylene ether) copolymers based on polymerization-depolymerization mechanism

Daisuke Yoshii^*, 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 structure-defined PPE copolymers should be obtained, such as alternating copolymers or block copolymers. In this work, the behavior of polymerization, structure and composition of the resulting copolymers were investigated. The depolymerization of PPE with 2,6-difluorophenol using a CuCl₂/N,N,N′N′- tetramethylethylenediamine catalyst was accomplished to produce the corresponding copolymer. Structural analyses using ¹H-NMR, ¹³C-NMR, and ¹⁹F-NMR revealed that the polymer consisted of both oxy-2,6-dimethyl-l,4-phenylene units and oxy-2,6-difluoro-l,4-phenylene units. Attempts to control the composition of the comonomers will be discussed.

Original language	English
Number of pages	1
Publication status	Published - 2006 Oct 18
Externally published	Yes
Event	55th SPSJ Annual Meeting - Nagoya, Japan Duration: 2006 May 24 → 2006 May 26

Conference

Conference	55th SPSJ Annual Meeting
Country/Territory	Japan
City	Nagoya
Period	06/5/24 → 06/5/26

Keywords

Copolymerization
Oxidative polymerization
Poly(phenylene ether)

ASJC Scopus subject areas

Engineering(all)

Cite this

@conference{f5424ade80264717a68a99b1f63fa36a,

title = "Synthesis and structure of poly(phenylene ether) copolymers based on polymerization-depolymerization mechanism",

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 structure-defined PPE copolymers should be obtained, such as alternating copolymers or block copolymers. In this work, the behavior of polymerization, structure and composition of the resulting copolymers were investigated. The depolymerization of PPE with 2,6-difluorophenol using a CuCl2/N,N,N′N′- tetramethylethylenediamine catalyst was accomplished to produce the corresponding copolymer. Structural analyses using 1H-NMR, 13C-NMR, and 19F-NMR revealed that the polymer consisted of both oxy-2,6-dimethyl-l,4-phenylene units and oxy-2,6-difluoro-l,4-phenylene units. Attempts to control the composition of the comonomers will be discussed.",

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

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

year = "2006",

month = oct,

day = "18",

language = "English",

note = "55th SPSJ Annual Meeting ; Conference date: 24-05-2006 Through 26-05-2006",

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TY - CONF

T1 - Synthesis and structure of poly(phenylene ether) copolymers based on polymerization-depolymerization mechanism

AU - Yoshii, Daisuke

AU - Oyaizu, Kenichi

AU - Yuasa, Makoto

PY - 2006/10/18

Y1 - 2006/10/18

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 structure-defined PPE copolymers should be obtained, such as alternating copolymers or block copolymers. In this work, the behavior of polymerization, structure and composition of the resulting copolymers were investigated. The depolymerization of PPE with 2,6-difluorophenol using a CuCl2/N,N,N′N′- tetramethylethylenediamine catalyst was accomplished to produce the corresponding copolymer. Structural analyses using 1H-NMR, 13C-NMR, and 19F-NMR revealed that the polymer consisted of both oxy-2,6-dimethyl-l,4-phenylene units and oxy-2,6-difluoro-l,4-phenylene units. Attempts to control the composition of the comonomers 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 structure-defined PPE copolymers should be obtained, such as alternating copolymers or block copolymers. In this work, the behavior of polymerization, structure and composition of the resulting copolymers were investigated. The depolymerization of PPE with 2,6-difluorophenol using a CuCl2/N,N,N′N′- tetramethylethylenediamine catalyst was accomplished to produce the corresponding copolymer. Structural analyses using 1H-NMR, 13C-NMR, and 19F-NMR revealed that the polymer consisted of both oxy-2,6-dimethyl-l,4-phenylene units and oxy-2,6-difluoro-l,4-phenylene units. Attempts to control the composition of the comonomers will be discussed.

KW - Copolymerization

KW - Oxidative polymerization

KW - Poly(phenylene ether)

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UR - http://www.scopus.com/inward/citedby.url?scp=33749662169&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:33749662169

T2 - 55th SPSJ Annual Meeting

Y2 - 24 May 2006 through 26 May 2006

ER -

Synthesis and structure of poly(phenylene ether) copolymers based on polymerization-depolymerization mechanism

Abstract

Conference

Keywords

ASJC Scopus subject areas

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