Químicas de endurecimiento mediante adición de Michael para composiciones de polímeros que contienen azufre empleando bis(sulfonil)alcanoles
Un aducto aceptor de Michael que contiene azufre que comprende al menos dos grupos 1-(etilensulfonil)-n- (vinilsulfonil)-alcanol terminales. Compositions useful in aerospace sealant applications comprise sulfur-containing polymers such as polythioethers and polysulfides and are cured using Michael a...
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| Zusammenfassung: | Un aducto aceptor de Michael que contiene azufre que comprende al menos dos grupos 1-(etilensulfonil)-n- (vinilsulfonil)-alcanol terminales.
Compositions useful in aerospace sealant applications comprise sulfur-containing polymers such as polythioethers and polysulfides and are cured using Michael addition reactions. Compositions employing Michael addition curing chemistries include sulfur-containing adducts comprising terminal Michael acceptor groups. In particular, the sulfur-containing adducts include terminal 1-(ethylenesulfonyl)-n-(vinylsulfonyl)alkanol groups. |
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