Specific features of curing of oligodieneurethane isocyanate prepolymer with glycerol in the presence of an organotin catalyst at twofold excess of isocyanate groups

Specific features of curing of oligodieneurethane isocyanate prepolymer with glycerol in the... The results of rheokinetic studies of catalytic curing of oligo dieneurethane prepolymer with glycerol at double excess of isocyanate groups are presented. The curing is described in the initial step by the polymerization equation with varying number of active sites (up to conversion x ≈ 20%); then, by an equation of an autocatalytic reaction with adiabatic self-acceleration (up to x ≈ 40%); and in the final step (x > 40%), by a second-order equation with self-acceleration effect. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Specific features of curing of oligodieneurethane isocyanate prepolymer with glycerol in the presence of an organotin catalyst at twofold excess of isocyanate groups

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Publisher
Springer US
Copyright
Copyright © 2013 by Pleiades Publishing, Ltd.
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S1070427213070185
Publisher site
See Article on Publisher Site

Abstract

The results of rheokinetic studies of catalytic curing of oligo dieneurethane prepolymer with glycerol at double excess of isocyanate groups are presented. The curing is described in the initial step by the polymerization equation with varying number of active sites (up to conversion x ≈ 20%); then, by an equation of an autocatalytic reaction with adiabatic self-acceleration (up to x ≈ 40%); and in the final step (x > 40%), by a second-order equation with self-acceleration effect.

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: Aug 28, 2013

References

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