Anna V. Savchuk*,† , Aleksey I. Slobodinyuk , Valery Yu. Senichev , and Vladimir N. Strelnikov
Institute of Technical Chemistry of Ural Branch of the RAS as Affiliated Branch of Perm Federal Research Center of Ural Branch of the RAS Acad., Korolev St. 3, 614013 Perm, Russian Federation
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There were investigated physical and physico-mechanical properties of elastomers based on three series of epoxy-terminated oligomers based on differently structured diisocyanates and diamines. The use of 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate enabled better strength properties to be obtained owing to the implementation of the strengthening effect. Also, there was elicited a positive influence of an increase in the content of 3-aminomethyl-3,5,5-trimethylcyclohexylamine in a mixture of hardeners on the strength of elastomers; it was associated with enhancing polarity of a polymer chain, therewith giving rise to changes in the phase separation degree.
Keywords: hard segments, soft segments, Fourier transform infrared spectrum, swelling, polyurethane, oligoetherurethane diepoxide, network density, glass transition temperature, physical and mechanical properties, phase separation.
2022; 46(6): 766-774
Published online Nov 25, 2022
Institute of Technical Chemistry of Ural Branch of the RAS as Affiliated Branch of Perm Federal Research Center of Ural Branch of the RAS Acad., Korolev St. 3, 614013 Perm, Russian Federation