The role of two-component catalysts containing chelating bisaryloxide ligands in controlling the stereochemistry of the metathesis polymerization of norbornene

Denise L. Barnes; Nancy W. Eilerts; Joseph A. Heppert; Wayne H. Huang; Martha D. Morton

doi:10.1016/S0277-5387(00)80260-0

The role of two-component catalysts containing chelating bisaryloxide ligands in controlling the stereochemistry of the metathesis polymerization of norbornene

Denise L. Barnes, Nancy W. Eilerts, Joseph A. Heppert, Wayne H. Huang, Martha D. Morton

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

22 Scopus citations

Abstract

The ring-opening metathesis polymerization of norbornene and 5,5-dimethylnorbornene has been studied with a range of tungsten(VI) ring-opening metathesis polymerization procatalysts containing chelating diolate ligands, including catechols, 1,8-dihydroxynaphthalene, 1,1′-bi-2-naphthol, biphenanthrol and bis(2-hydroxyphenyl) methane. One class of these catalysts, W(X)(OArO)Cl₂(THF) (X = O or NArMe₂) was produced via alcoholysis reactions between W(X)Cl₄ and the respective diol. Polymers of norbornene produced with these catalysts showed a reasonable correlation between ring size and cis-selectivity. This effect is most likely steric in origin. Analyses of the tacticity of poly-5,5-dimethylnorbornene showed a correlation betwen high cis-olefin content and syndiotacticity, even when produced with catalysts containing asymmetric chelating diolate ligands.

Original language	English (US)
Pages (from-to)	1267-1275
Number of pages	9
Journal	Polyhedron
Volume	13
Issue number	8
DOIs	https://doi.org/10.1016/S0277-5387(00)80260-0
State	Published - Apr 1994
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1016/S0277-5387(00)80260-0

Cite this

@article{f448f061c43140209f3f4ad25588493f,

title = "The role of two-component catalysts containing chelating bisaryloxide ligands in controlling the stereochemistry of the metathesis polymerization of norbornene",

abstract = "The ring-opening metathesis polymerization of norbornene and 5,5-dimethylnorbornene has been studied with a range of tungsten(VI) ring-opening metathesis polymerization procatalysts containing chelating diolate ligands, including catechols, 1,8-dihydroxynaphthalene, 1,1′-bi-2-naphthol, biphenanthrol and bis(2-hydroxyphenyl) methane. One class of these catalysts, W(X)(OArO)Cl2(THF) (X = O or NArMe2) was produced via alcoholysis reactions between W(X)Cl4 and the respective diol. Polymers of norbornene produced with these catalysts showed a reasonable correlation between ring size and cis-selectivity. This effect is most likely steric in origin. Analyses of the tacticity of poly-5,5-dimethylnorbornene showed a correlation betwen high cis-olefin content and syndiotacticity, even when produced with catalysts containing asymmetric chelating diolate ligands.",

author = "Barnes, {Denise L.} and Eilerts, {Nancy W.} and Heppert, {Joseph A.} and Huang, {Wayne H.} and Morton, {Martha D.}",

note = "Funding Information: Acknowledgements-We thank the donors of the Petroleum Research Fund administered by the American Chemical Society for partial support of this work. This work was also supported by the National Science Foundation under EPSCoR grant no. GSR-9255223. The government has certain rights in this material. This work also received matching support from the State of Kansas. J. A. H. gratefully acknowledges the aid of Dr S. S. Huang and Peggy Mack of B. F. Goodrich Corporation in some aspects of polymer characterization.",

year = "1994",

month = apr,

doi = "10.1016/S0277-5387(00)80260-0",

language = "English (US)",

volume = "13",

pages = "1267--1275",

journal = "Polyhedron",

issn = "0277-5387",

publisher = "Elsevier Ltd",

number = "8",

}

TY - JOUR

T1 - The role of two-component catalysts containing chelating bisaryloxide ligands in controlling the stereochemistry of the metathesis polymerization of norbornene

AU - Barnes, Denise L.

AU - Eilerts, Nancy W.

AU - Heppert, Joseph A.

AU - Huang, Wayne H.

AU - Morton, Martha D.

N1 - Funding Information: Acknowledgements-We thank the donors of the Petroleum Research Fund administered by the American Chemical Society for partial support of this work. This work was also supported by the National Science Foundation under EPSCoR grant no. GSR-9255223. The government has certain rights in this material. This work also received matching support from the State of Kansas. J. A. H. gratefully acknowledges the aid of Dr S. S. Huang and Peggy Mack of B. F. Goodrich Corporation in some aspects of polymer characterization.

PY - 1994/4

Y1 - 1994/4

N2 - The ring-opening metathesis polymerization of norbornene and 5,5-dimethylnorbornene has been studied with a range of tungsten(VI) ring-opening metathesis polymerization procatalysts containing chelating diolate ligands, including catechols, 1,8-dihydroxynaphthalene, 1,1′-bi-2-naphthol, biphenanthrol and bis(2-hydroxyphenyl) methane. One class of these catalysts, W(X)(OArO)Cl2(THF) (X = O or NArMe2) was produced via alcoholysis reactions between W(X)Cl4 and the respective diol. Polymers of norbornene produced with these catalysts showed a reasonable correlation between ring size and cis-selectivity. This effect is most likely steric in origin. Analyses of the tacticity of poly-5,5-dimethylnorbornene showed a correlation betwen high cis-olefin content and syndiotacticity, even when produced with catalysts containing asymmetric chelating diolate ligands.

AB - The ring-opening metathesis polymerization of norbornene and 5,5-dimethylnorbornene has been studied with a range of tungsten(VI) ring-opening metathesis polymerization procatalysts containing chelating diolate ligands, including catechols, 1,8-dihydroxynaphthalene, 1,1′-bi-2-naphthol, biphenanthrol and bis(2-hydroxyphenyl) methane. One class of these catalysts, W(X)(OArO)Cl2(THF) (X = O or NArMe2) was produced via alcoholysis reactions between W(X)Cl4 and the respective diol. Polymers of norbornene produced with these catalysts showed a reasonable correlation between ring size and cis-selectivity. This effect is most likely steric in origin. Analyses of the tacticity of poly-5,5-dimethylnorbornene showed a correlation betwen high cis-olefin content and syndiotacticity, even when produced with catalysts containing asymmetric chelating diolate ligands.

UR - http://www.scopus.com/inward/record.url?scp=0001166892&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001166892&partnerID=8YFLogxK

U2 - 10.1016/S0277-5387(00)80260-0

DO - 10.1016/S0277-5387(00)80260-0

M3 - Article

AN - SCOPUS:0001166892

SN - 0277-5387

VL - 13

SP - 1267

EP - 1275

JO - Polyhedron

JF - Polyhedron

IS - 8

ER -

The role of two-component catalysts containing chelating bisaryloxide ligands in controlling the stereochemistry of the metathesis polymerization of norbornene

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this