Synthesis and Characterization of Phosphinobenzenamine Palladium Complexes and Their Application in Ethylene Polymerization and Copolymerization with Polar Monomers

Lixin Cao; Zhengguo Cai; Mingyuan Li

doi:10.1021/acs.organomet.2c00389

Synthesis and Characterization of Phosphinobenzenamine Palladium Complexes and Their Application in Ethylene Polymerization and Copolymerization with Polar Monomers

Lixin Cao, Zhengguo Cai^*, Mingyuan Li^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

A series of phosphinobenzenamine palladium complexes Pd1–Pd5 with different substituents was successfully synthesized and characterized. X-ray diffraction analysis of Pd1, Pd2, and Pd4 revealed that the palladium complexes exhibited an almost square–planar geometry and structural distinctions compared with previously reported N∧P-based palladium complexes. These palladium complexes exhibited high activity (4.92 × 105 g mol–1 h–1) toward ethylene polymerization with excellent thermal stability up to 100 °C to produce semicrystalline polyethylenes bearing unsaturated vinylene/vinyl groups with moderate branch densities (15–26/1000 C). Most importantly, they could promote the copolymerization of ethylene and polar monomers, such as methyl acrylate (MA) and 5-hexene-1-yl-acetate (HAc), even at a high temperature of 80 °C.

Original language	English
Journal	Organometallics
DOIs	https://doi.org/10.1021/acs.organomet.2c00389
State	Published - 18 Nov 2022

Keywords

Catalysts
Ethylene polymerization
Hydrocarbons
Palladium
Palladium complexes

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10.1021/acs.organomet.2c00389

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@article{0dc80d45be8a433aa0f3a5f5d2ffa21e,

title = "Synthesis and Characterization of Phosphinobenzenamine Palladium Complexes and Their Application in Ethylene Polymerization and Copolymerization with Polar Monomers",

abstract = "A series of phosphinobenzenamine palladium complexes Pd1–Pd5 with different substituents was successfully synthesized and characterized. X-ray diffraction analysis of Pd1, Pd2, and Pd4 revealed that the palladium complexes exhibited an almost square–planar geometry and structural distinctions compared with previously reported N∧P-based palladium complexes. These palladium complexes exhibited high activity (4.92 × 105 g mol–1 h–1) toward ethylene polymerization with excellent thermal stability up to 100 °C to produce semicrystalline polyethylenes bearing unsaturated vinylene/vinyl groups with moderate branch densities (15–26/1000 C). Most importantly, they could promote the copolymerization of ethylene and polar monomers, such as methyl acrylate (MA) and 5-hexene-1-yl-acetate (HAc), even at a high temperature of 80 °C.",

keywords = "Catalysts, Ethylene polymerization, Hydrocarbons, Palladium, Palladium complexes",

author = "Lixin Cao and Zhengguo Cai and Mingyuan Li",

year = "2022",

month = nov,

day = "18",

doi = "10.1021/acs.organomet.2c00389",

language = "英语",

journal = "Organometallics",

issn = "0276-7333",

publisher = "American Chemical Society",

}

TY - JOUR

T1 - Synthesis and Characterization of Phosphinobenzenamine Palladium Complexes and Their Application in Ethylene Polymerization and Copolymerization with Polar Monomers

AU - Cao, Lixin

AU - Cai, Zhengguo

AU - Li, Mingyuan

PY - 2022/11/18

Y1 - 2022/11/18

N2 - A series of phosphinobenzenamine palladium complexes Pd1–Pd5 with different substituents was successfully synthesized and characterized. X-ray diffraction analysis of Pd1, Pd2, and Pd4 revealed that the palladium complexes exhibited an almost square–planar geometry and structural distinctions compared with previously reported N∧P-based palladium complexes. These palladium complexes exhibited high activity (4.92 × 105 g mol–1 h–1) toward ethylene polymerization with excellent thermal stability up to 100 °C to produce semicrystalline polyethylenes bearing unsaturated vinylene/vinyl groups with moderate branch densities (15–26/1000 C). Most importantly, they could promote the copolymerization of ethylene and polar monomers, such as methyl acrylate (MA) and 5-hexene-1-yl-acetate (HAc), even at a high temperature of 80 °C.

AB - A series of phosphinobenzenamine palladium complexes Pd1–Pd5 with different substituents was successfully synthesized and characterized. X-ray diffraction analysis of Pd1, Pd2, and Pd4 revealed that the palladium complexes exhibited an almost square–planar geometry and structural distinctions compared with previously reported N∧P-based palladium complexes. These palladium complexes exhibited high activity (4.92 × 105 g mol–1 h–1) toward ethylene polymerization with excellent thermal stability up to 100 °C to produce semicrystalline polyethylenes bearing unsaturated vinylene/vinyl groups with moderate branch densities (15–26/1000 C). Most importantly, they could promote the copolymerization of ethylene and polar monomers, such as methyl acrylate (MA) and 5-hexene-1-yl-acetate (HAc), even at a high temperature of 80 °C.

KW - Catalysts

KW - Ethylene polymerization

KW - Hydrocarbons

KW - Palladium

KW - Palladium complexes

U2 - 10.1021/acs.organomet.2c00389

DO - 10.1021/acs.organomet.2c00389

M3 - 文章

SN - 0276-7333

JO - Organometallics

JF - Organometallics

ER -

Synthesis and Characterization of Phosphinobenzenamine Palladium Complexes and Their Application in Ethylene Polymerization and Copolymerization with Polar Monomers

Abstract

Keywords

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