Abstract
New polytetraurethane diepoxides were prepared from oligo(tetramethylene oxide)diols of various molecular masses, various diisocyanates, and glycidol. High-strength frost-resistant cold-curable elastic compounds were prepared on their basis. The use of aminoethylpiperazine as a curing agent allows the cured materials to be prepared in 24 h at room temperature. The elastomers based on isophorone diisocyanate exhibit higher mechanical and thermal characteristics than those based on 2,4-toluene diisocyanate, which is due to higher degree of microphase segregation of soft and hard blocks of elastomers based in isophorone diisocyanate.
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Original Russian Text © V.N. Strel’nikov, V.Yu. Senichev, A.I. Slobodinyuk, A.V. Savchuk, E.R. Volkova, M.A. Makarova, A.I. Nechaev, S.F. Krasnosel’skikh, K.O. Ukhin, 2018, published in Zhurnal Prikladnoi Khimii, 2018, Vol. 91, No. 3, pp. 426−431.
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Strel’nikov, V.N., Senichev, V.Y., Slobodinyuk, A.I. et al. Preparation and Properties of Frost-Resistant Room-Temperature-Curable Compounds Based on Oligoethertetraurethane Diepoxides of Various Chemical Structures. Russ J Appl Chem 91, 463–468 (2018). https://doi.org/10.1134/S1070427218030199
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DOI: https://doi.org/10.1134/S1070427218030199