Synthesis of linear polyolefins with palladium complexes

Takuya Kochi; Kenji Yoshimura; Shusuke Noda; Kyoko Nozaki

Synthesis of linear polyolefins with palladium complexes

Takuya Kochi, Kenji Yoshimura, Shusuke Noda, Kyoko Nozaki

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

Abstract

Reaction conditions for copolymerization of ethylene and methyl acrylate with 2 or 3 to afford highly linear copolymers were screened. Lowering the temperature of the copolymerization reaction led to an increase in molecular weight. Terminating end group analysis showed that copolymers prepared with 3 predominantly possess 2-methoxycarbonylethenyl group, instead of vinyl group. By decreasing the amount of methyl acrylate used and increasing the ethylene pressure, M_n up to 28200 was achieved. Ethylene homopolymerization with 3 also provided highly linear polyethylene with a molecular weight of 70000. Reaction of 3 with ethylene provided palladium complexes with long n-alkyl ligands, which suggests coordination polymerization to produce linear polyolefins takes place on the palladium metal.

Original language	English
Pages	2701-2702
Number of pages	2
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

Linear polyolefins
Methyl acrylate
Palladium complexes
Phosphine-sulfonate bidentate ligands
Polyethylene

ASJC Scopus subject areas

Engineering(all)

Cite this

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title = "Synthesis of linear polyolefins with palladium complexes",

abstract = "Reaction conditions for copolymerization of ethylene and methyl acrylate with 2 or 3 to afford highly linear copolymers were screened. Lowering the temperature of the copolymerization reaction led to an increase in molecular weight. Terminating end group analysis showed that copolymers prepared with 3 predominantly possess 2-methoxycarbonylethenyl group, instead of vinyl group. By decreasing the amount of methyl acrylate used and increasing the ethylene pressure, Mn up to 28200 was achieved. Ethylene homopolymerization with 3 also provided highly linear polyethylene with a molecular weight of 70000. Reaction of 3 with ethylene provided palladium complexes with long n-alkyl ligands, which suggests coordination polymerization to produce linear polyolefins takes place on the palladium metal.",

keywords = "Linear polyolefins, Methyl acrylate, Palladium complexes, Phosphine-sulfonate bidentate ligands, Polyethylene",

author = "Takuya Kochi and Kenji Yoshimura and Shusuke Noda and Kyoko Nozaki",

year = "2006",

month = dec,

day = "1",

language = "English",

pages = "2701--2702",

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 of linear polyolefins with palladium complexes

AU - Kochi, Takuya

AU - Yoshimura, Kenji

AU - Noda, Shusuke

AU - Nozaki, Kyoko

PY - 2006/12/1

Y1 - 2006/12/1

N2 - Reaction conditions for copolymerization of ethylene and methyl acrylate with 2 or 3 to afford highly linear copolymers were screened. Lowering the temperature of the copolymerization reaction led to an increase in molecular weight. Terminating end group analysis showed that copolymers prepared with 3 predominantly possess 2-methoxycarbonylethenyl group, instead of vinyl group. By decreasing the amount of methyl acrylate used and increasing the ethylene pressure, Mn up to 28200 was achieved. Ethylene homopolymerization with 3 also provided highly linear polyethylene with a molecular weight of 70000. Reaction of 3 with ethylene provided palladium complexes with long n-alkyl ligands, which suggests coordination polymerization to produce linear polyolefins takes place on the palladium metal.

AB - Reaction conditions for copolymerization of ethylene and methyl acrylate with 2 or 3 to afford highly linear copolymers were screened. Lowering the temperature of the copolymerization reaction led to an increase in molecular weight. Terminating end group analysis showed that copolymers prepared with 3 predominantly possess 2-methoxycarbonylethenyl group, instead of vinyl group. By decreasing the amount of methyl acrylate used and increasing the ethylene pressure, Mn up to 28200 was achieved. Ethylene homopolymerization with 3 also provided highly linear polyethylene with a molecular weight of 70000. Reaction of 3 with ethylene provided palladium complexes with long n-alkyl ligands, which suggests coordination polymerization to produce linear polyolefins takes place on the palladium metal.

KW - Linear polyolefins

KW - Methyl acrylate

KW - Palladium complexes

KW - Phosphine-sulfonate bidentate ligands

KW - Polyethylene

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M3 - Paper

AN - SCOPUS:33846132581

SP - 2701

EP - 2702

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

Y2 - 20 September 2006 through 22 September 2006

ER -

Synthesis of linear polyolefins with palladium complexes

Abstract

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Keywords

ASJC Scopus subject areas

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