Gelation in the cyclotrimerization of dicyanates considering substitution effects View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1992-04

AUTHORS

R. J. J. Williams, A. Vázquez, J. P. Pascault

ABSTRACT

The cyclotrimerization of dicyanates to form polycyanurate networks has been analyzed using a pure kinetic model and a combined kinetic-recursive procedure. In both cases substitution effects were considered, i.e. the reactivity of OCN groups pertainning to clusters was assumed lower than the corresponding reactivity of the monomer groups. The gel conversion varied from 1/2 (no substitutions effects) to 2/3 (infinite substitution effects). The evolution of trimer concentration along the reaction constitutes a direct experimental evidence to decide whether the polymerization follows or not an ideal course, described by the mean-field theory. More... »

PAGES

219-225

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf00299659

DOI

http://dx.doi.org/10.1007/bf00299659

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1000252901


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