Concerning the mechanism of ring-opening polymerization by coordinate catalysts: The 2D homonuclear J-resolved spectrum of poly(cyclohexene oxide)

Malcolm H. Chisholm; Jack K. Crandall; David G. McCollum; Marty Pagel

doi:10.1021/ma9901745

Concerning the mechanism of ring-opening polymerization by coordinate catalysts: The 2D homonuclear J-resolved spectrum of poly(cyclohexene oxide)

Malcolm H. Chisholm, Jack K. Crandall, David G. McCollum, Marty Pagel

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

14 Scopus citations

Abstract

The use of 2D homonuclear J-resolved ¹H nuclear magnetic resonance (NMR) spectroscopy in the investigations of the methine region of poly(cyclohexene oxide) formed by polymerization of cyclohexene oxide employing the Union Carbide calcium-amide-alkoxide catalyst reveals the majority of the ring opening occurs by backside attack. Trimer molecular model were constructed using a numerical code with hydroxyl group chain termini in the equatorial positions. After minimization of each molecular model, vicinal coupling constants were calculated.

Original language	English (US)
Pages (from-to)	5744-5746
Number of pages	3
Journal	Macromolecules
Volume	32
Issue number	18
DOIs	https://doi.org/10.1021/ma9901745
State	Published - 1999
Externally published	Yes

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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abstract = "The use of 2D homonuclear J-resolved 1H nuclear magnetic resonance (NMR) spectroscopy in the investigations of the methine region of poly(cyclohexene oxide) formed by polymerization of cyclohexene oxide employing the Union Carbide calcium-amide-alkoxide catalyst reveals the majority of the ring opening occurs by backside attack. Trimer molecular model were constructed using a numerical code with hydroxyl group chain termini in the equatorial positions. After minimization of each molecular model, vicinal coupling constants were calculated.",

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T2 - The 2D homonuclear J-resolved spectrum of poly(cyclohexene oxide)

AU - Chisholm, Malcolm H.

AU - Crandall, Jack K.

AU - McCollum, David G.

AU - Pagel, Marty

PY - 1999

Y1 - 1999

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AB - The use of 2D homonuclear J-resolved 1H nuclear magnetic resonance (NMR) spectroscopy in the investigations of the methine region of poly(cyclohexene oxide) formed by polymerization of cyclohexene oxide employing the Union Carbide calcium-amide-alkoxide catalyst reveals the majority of the ring opening occurs by backside attack. Trimer molecular model were constructed using a numerical code with hydroxyl group chain termini in the equatorial positions. After minimization of each molecular model, vicinal coupling constants were calculated.

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JF - Macromolecules

IS - 18

ER -

Concerning the mechanism of ring-opening polymerization by coordinate catalysts: The 2D homonuclear J-resolved spectrum of poly(cyclohexene oxide)

Abstract

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