Rheokinetics of ring-opening metathesis polymerization of norbornene-based monomers intended for self-healing applications

G. E. Larin, N. Bernklau, M. R. Kessler, J. C. DiCesare

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

Constant shear rate rheokinetics was used to evaluate the polymerization of four norbornene-based monomer systems as candidate healing agents in self-healing composites: encto-dicyclopentadiene (endo-DCPD), exo-DCPD, 5-ethylidene-2-norbornene (ENB), and a 1:1 volume mixture of endb-DCPD:ENB. The ruthenium catalyst induced ring-opening metathesis polymerization of the healing agent candidates were measured experimentally under isothermal conditions while the influences of several different variables were considered (e.g., test temperature, catalyst concentration, catalyst form). Analyzing the increase in viscosity during the polymerization, comparisons of the reaction kinetics of the different monomers were quantified by defining two parameters, tt, and Δt, which correspond to the polymerization initiation and propagation rates respectively. Generally, ENB shows the fastest polymerization kinetics, and endo-DCPD the slowest

Original languageEnglish
Pages (from-to)1804-1811
Number of pages8
JournalPolymer Engineering and Science
Volume46
Issue number12
DOIs
StatePublished - Dec 2006

Scopus Subject Areas

  • General Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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