Abstract

Vasiliyp Medvedev¹, Marata Vaniyev¹, Saulea Sakibayeva² and Anastassiya Y Kovaleva^2*

DOI : http://dx.doi.org/10.13005/ojc/320507

The article is devoted to the research of the  chain branching agent nature impact on the structure and type of vulcanization network crosslinks, the degree of crosslinking and the complex of physico-mechanical properties of polidienuretane on the basis of NISSOG 3000oligomeric rubber was researched. Interdependence of structural parameters of elastomeric netting and elastic strength properties of the hardened materials was determined. It was defined that a significant contribution to the structure network formation is made by physical bonds due to intermolecular interaction. Using an aromatic diamine allows to increase the share of  physical links and ratio of reactive functional groups.  The possibility of physical-mechanical indicators of  polydieneurethane vulcanization network varying by changing the ratio of reactive functional groups and the type of chain branching agent was proved. The resistance of polyurethane materials on the basis of oligodiendiols  in the conditions of thermooxidative aging conditions and it was found that they have a fairly high thermooxidative stability.

oligodiendiols; polyisocyanates; chain branching agent; polydieneurethane; coatings

[ View HTML Full Text]