The relative reactivity of 2,3-dicarbomethoxy-5-norbornenes in metathesis polymerization using the original N-chelating ruthenium carbene complex

R. V. Ashirov, D. Zemlyakov, A. A. Lyapkov, S. Kiselev, Dirk Vervacke

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

1H NMR spectroscopy is used to study the kinetics of metathesis copolymerization of three isomeric 2,3-dicarbomethoxy-5-norbornenes using the original N-chelating ruthenium carbene complex. Based on the experimental data the copolymerization constants of isomeric 2,3-dicarbomethoxy-5-norbornenes are calculated. It is shown that the relative reactivity of endic acid dimethyl ester-(1R,2S,3R,4S)-dimethyl bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate is almost two times lower than the corresponding values for (1R,2R,3S,4S)-dimethyl bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate, which confirms earlier findings of steric hindrance in the orientation of the monomer due to the carbene catalyst.

Original languageEnglish
Article number40130
JournalJournal of Applied Polymer Science
Volume131
Issue number8
DOIs
Publication statusPublished - 15 Apr 2014

Fingerprint

Ruthenium
Chelation
Copolymerization
Polymerization
Nuclear magnetic resonance spectroscopy
Esters
Monomers
Catalysts
Kinetics
Acids
carbene

Keywords

  • Copolymerization constants
  • Dimethyl bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate
  • Metathesis copolymerization catalyst Hoveyda-Grubbs II
  • The rate constant

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Surfaces, Coatings and Films
  • Chemistry(all)

Cite this

The relative reactivity of 2,3-dicarbomethoxy-5-norbornenes in metathesis polymerization using the original N-chelating ruthenium carbene complex. / Ashirov, R. V.; Zemlyakov, D.; Lyapkov, A. A.; Kiselev, S.; Vervacke, Dirk.

In: Journal of Applied Polymer Science, Vol. 131, No. 8, 40130, 15.04.2014.

Research output: Contribution to journalArticle

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AU - Vervacke, Dirk

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N2 - 1H NMR spectroscopy is used to study the kinetics of metathesis copolymerization of three isomeric 2,3-dicarbomethoxy-5-norbornenes using the original N-chelating ruthenium carbene complex. Based on the experimental data the copolymerization constants of isomeric 2,3-dicarbomethoxy-5-norbornenes are calculated. It is shown that the relative reactivity of endic acid dimethyl ester-(1R,2S,3R,4S)-dimethyl bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate is almost two times lower than the corresponding values for (1R,2R,3S,4S)-dimethyl bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate, which confirms earlier findings of steric hindrance in the orientation of the monomer due to the carbene catalyst.

AB - 1H NMR spectroscopy is used to study the kinetics of metathesis copolymerization of three isomeric 2,3-dicarbomethoxy-5-norbornenes using the original N-chelating ruthenium carbene complex. Based on the experimental data the copolymerization constants of isomeric 2,3-dicarbomethoxy-5-norbornenes are calculated. It is shown that the relative reactivity of endic acid dimethyl ester-(1R,2S,3R,4S)-dimethyl bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate is almost two times lower than the corresponding values for (1R,2R,3S,4S)-dimethyl bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate, which confirms earlier findings of steric hindrance in the orientation of the monomer due to the carbene catalyst.

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