MICHAEL ADDITION CURING CHEMICAL COMPOSITIONS FOR SULFUR-CONTAINING POLYMER COMPOSITIONS EMPLOYING BIS(SULFONYL)ALKANOLS

FIELD: chemistry.SUBSTANCE: invention relates to a sulfur-containing adduct that is a Michael acceptor containing an adduct of formula (3) in the form of a polythioether, which is a Michael acceptor, an adduct of formula (3a) in the form of a polythioether, which is a Michael acceptor, and their combination: R-S -R-[ -S -(CH)-O -(R-O)-(CH)-S -R-]-S -R(3); {R-S -R-[ -S -(CH)-O -(R-O)-(CH)-S -R-]-S- V' -}B (3a), in which each Ris independently selected from C-alkanediyl, C-cycloalkanediyl, C-alkanecycloalkanediyl, C-heterocycloalkanediyl and -[( -CHR-)-X -]-( -CHR-)-, where s is an integer from 2 to 6; q is an integer from 1 to 5; r is an integer from 2 to 10; each Ris independently selected from hydrogen and methyl; and each X is independently selected from -O -, -S - and -NR-, wherein R is selected from hydrogen and methyl; each Ris independently selected from Calkanediyl, C-cycloalkanediyl, C-alkanecycloalkanediyl and -[( -CHR-)-X -]-( -CHR-)-, wherein s, q, r, Rand X are as described for R; m is an integer from 0 to 50; n is an integer from 1 to 60; p is an integer from 2 to 6; B is the nucleus of the z-valent, polyfunctionality-imparting reagent B(-V)with terminal vinyl groups, in which z is an integer from 3 to 6; and each V is a group comprising a thiol-reactive group; and each -V' is obtained by the reaction of -V with thiol; and each Ris independently a fragment containing a terminal 1-(ethylene-sulfonyl)-n-(vinylsulfonyl) alkanol group.EFFECT: disclosed is the use of chemical compositions cured by Michael addition in the case of compositions containing sulfur-containing polymers such as polythioethers and polysulfides suitable for use as aerospace sealants.22 cl, 1 tbl, 3 ex Изобретение относится к серосодержащему аддукту, являющемуся акцептором Михаэля, содержащему аддукт формулы (3) в форме простого политиоэфира, являющегося акцептором Михаэля, аддукт формулы (3a) в форме простого политиоэфира, являющегося акцептором Михаэля, и их сочетание:R-S -R-[ -S -(CH)-O -(R-O)-(CH)-S -R-]-S -R(3);{R-S -R-[ -S -(CH)-O -(R-O)-(CH)-S -R-]-S- V' -}B (3a),в которых каждый Rнезависимо выбран из C-алкандиила, C-циклоалкандиила, C-алканциклоалкандиила, C-гетероциклоалкандиила и -[( -CHR-)-X -]-( -CHR-)-, где s является целым числом от 2 до 6; q является целым числом от 1 до 5; r является целым числом от 2 до 10; каждый Rнезависимо выбран из водорода и метила; и каждый X независимо выбран из -O -, -S - и -NR-, при этом R выбран из водорода и метила; каждый Rнезавис