Curing of poly-N-methyl-5-vinyltetrazole with oxirane-containing polymers

Curing of poly-N-methyl-5-vinyltetrazole with oxirane-containing polymers Curing of a promising binder for energy-intensive systems, poly-N-methyl-5-vinyltetrazole, produced by the modification method by the reaction with a same-type tetrazole-containing polymer with oxirane rings in its structure was studied. The cross-linking of molecules of dissimilar polymers and the formation of a network structure result from the alkylation reaction of residual N–H-unsubstituted tetrazole rings in poly-N-methyl- 5-vinyltetrazole macromolecules by oxirane rings contained in the structure of the second reactant. It was found that the process of curing of the polymeric system occurs at technologically acceptable rates at temperatures below 100°C at a content of residual N–H-unsubstituted tetrazole rings of no less than 2 mol %. Two to four days are required for the curing (vulcanization) process to be complete, depending on the reaction conditions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Curing of poly-N-methyl-5-vinyltetrazole with oxirane-containing polymers

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Publisher
Pleiades Publishing
Copyright
Copyright © 2015 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/S1070427215080108
Publisher site
See Article on Publisher Site

Abstract

Curing of a promising binder for energy-intensive systems, poly-N-methyl-5-vinyltetrazole, produced by the modification method by the reaction with a same-type tetrazole-containing polymer with oxirane rings in its structure was studied. The cross-linking of molecules of dissimilar polymers and the formation of a network structure result from the alkylation reaction of residual N–H-unsubstituted tetrazole rings in poly-N-methyl- 5-vinyltetrazole macromolecules by oxirane rings contained in the structure of the second reactant. It was found that the process of curing of the polymeric system occurs at technologically acceptable rates at temperatures below 100°C at a content of residual N–H-unsubstituted tetrazole rings of no less than 2 mol %. Two to four days are required for the curing (vulcanization) process to be complete, depending on the reaction conditions.

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: Nov 21, 2015

References

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