Synthesis, structure and norbornene polymerization behavior of neutral palladium complexes

Hua Liang; Jingyu Liu; Xiaofang Li; Yuesheng Li

doi:10.1016/j.poly.2004.03.017

Synthesis, structure and norbornene polymerization behavior of neutral palladium complexes

Hua Liang, Jingyu Liu, Xiaofang Li, Yuesheng Li^*

^*Corresponding author for this work

CAS - Changchun Institute of Applied Chemistry

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

68 Citations (Scopus)

Abstract

A series of neutral palladium(II) complexes bearing non-symmetric bidentate pyrrole-iminato or salicylaldiminato chelate ligands have been synthesized, and the structure of representative complexes (3a, 4a, and 5a) have been confirmed by X-ray crystallographic analysis. These palladium complexes have been investigated as catalysts for the polymerization of norbornene. Using modified methylaluminoxane (MMAO) as a cocatalyst, these complexes display high activities and produce vinyl-addition polynorborenes. Catalytic activity of up to 8.52×10³ kg/mol_Pd h has been observed. Wide-angle X-ray diffraction (WAXD) has been used to investigate the polymer microstructure and it has been found that they are non-crystalline.

Original language	English
Pages (from-to)	1619-1627
Number of pages	9
Journal	Polyhedron
Volume	23
Issue number	9
DOIs	https://doi.org/10.1016/j.poly.2004.03.017
Publication status	Published - 27 May 2004
Externally published	Yes

Keywords

Catalyst
Methylaluminoxane
Neutral palladium(II) complex
Norbornene
Vinylic polymerizaition
X-ray crystallography

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10.1016/j.poly.2004.03.017

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title = "Synthesis, structure and norbornene polymerization behavior of neutral palladium complexes",

abstract = "A series of neutral palladium(II) complexes bearing non-symmetric bidentate pyrrole-iminato or salicylaldiminato chelate ligands have been synthesized, and the structure of representative complexes (3a, 4a, and 5a) have been confirmed by X-ray crystallographic analysis. These palladium complexes have been investigated as catalysts for the polymerization of norbornene. Using modified methylaluminoxane (MMAO) as a cocatalyst, these complexes display high activities and produce vinyl-addition polynorborenes. Catalytic activity of up to 8.52×103 kg/molPd h has been observed. Wide-angle X-ray diffraction (WAXD) has been used to investigate the polymer microstructure and it has been found that they are non-crystalline.",

keywords = "Catalyst, Methylaluminoxane, Neutral palladium(II) complex, Norbornene, Vinylic polymerizaition, X-ray crystallography",

author = "Hua Liang and Jingyu Liu and Xiaofang Li and Yuesheng Li",

year = "2004",

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doi = "10.1016/j.poly.2004.03.017",

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T1 - Synthesis, structure and norbornene polymerization behavior of neutral palladium complexes

AU - Liang, Hua

AU - Liu, Jingyu

AU - Li, Xiaofang

AU - Li, Yuesheng

PY - 2004/5/27

Y1 - 2004/5/27

N2 - A series of neutral palladium(II) complexes bearing non-symmetric bidentate pyrrole-iminato or salicylaldiminato chelate ligands have been synthesized, and the structure of representative complexes (3a, 4a, and 5a) have been confirmed by X-ray crystallographic analysis. These palladium complexes have been investigated as catalysts for the polymerization of norbornene. Using modified methylaluminoxane (MMAO) as a cocatalyst, these complexes display high activities and produce vinyl-addition polynorborenes. Catalytic activity of up to 8.52×103 kg/molPd h has been observed. Wide-angle X-ray diffraction (WAXD) has been used to investigate the polymer microstructure and it has been found that they are non-crystalline.

AB - A series of neutral palladium(II) complexes bearing non-symmetric bidentate pyrrole-iminato or salicylaldiminato chelate ligands have been synthesized, and the structure of representative complexes (3a, 4a, and 5a) have been confirmed by X-ray crystallographic analysis. These palladium complexes have been investigated as catalysts for the polymerization of norbornene. Using modified methylaluminoxane (MMAO) as a cocatalyst, these complexes display high activities and produce vinyl-addition polynorborenes. Catalytic activity of up to 8.52×103 kg/molPd h has been observed. Wide-angle X-ray diffraction (WAXD) has been used to investigate the polymer microstructure and it has been found that they are non-crystalline.

KW - Catalyst

KW - Methylaluminoxane

KW - Neutral palladium(II) complex

KW - Norbornene

KW - Vinylic polymerizaition

KW - X-ray crystallography

UR - http://www.scopus.com/inward/record.url?scp=2442528613&partnerID=8YFLogxK

U2 - 10.1016/j.poly.2004.03.017

DO - 10.1016/j.poly.2004.03.017

M3 - Article

AN - SCOPUS:2442528613

SN - 0277-5387

VL - 23

SP - 1619

EP - 1627

JO - Polyhedron

JF - Polyhedron

IS - 9

ER -

Synthesis, structure and norbornene polymerization behavior of neutral palladium complexes

Abstract

Keywords

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