Preparation and Properties of Frost-Resistant Room-Temperature-Curable Compounds Based on Oligoethertetraurethane Diepoxides of Various Chemical Structures.

Autor:	Strel’nikov, V. N., Senichev, V. Yu., Slobodinyuk, A. I., Savchuk, A. V., Volkova, E. R., Makarova, M. A., Nechaev, A. I., Krasnosel’skikh, S. F., Ukhin, K. O.
Předmět:	EPOXY compounds ETHYLENE oxide CHEMICAL structure MOLECULAR weights ISOCYANATES
Zdroj:	Russian Journal of Applied Chemistry; Mar2018, Vol. 91 Issue 3, p463-468, 6p
Abstrakt:	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. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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