Вид документа : Статья из журнала Шифр издания : 54/S 98 Автор(ы) : Yatluk Yu. G., Eremin D.V., Neudachina L.K., Skorik Yu.A. Заглавие : Synthesis and sorption properties of new hybrid chelating sorbents with ?-alanine functional groups [Electronic resource] Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2004. - Vol. 53, № 12. - С. 2730-2735 Систем. требования: http://www.springerlink.com/content/w88214314326un32/fulltext.pdf ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: A series of gamma-aminopropylsilylated sorbents was obtained from different oxide supports (silica gels, silica fillers, macroporous glasses, alumina) and by the direct synthesis (hydrolytic polycondensation of tetraalkoxysilanes with gamma-aminopropyltriethoxysilane). The highest degree of immobilization was achieved for silicas, while the most convenient solvent was methanol. Sorbents with beta-alanine functional groups were obtained by the subsequent reaction with acrylic acid. The degree of beta-carboxyethylation was 1.3–1.9, and the highest content of functional groups (vCOOH = 3.23 mmol g–1) was achieved for carboxyethylated xero gel synthesized by the copolycondensation of tetraethoxysilane with -aminopropyltriethoxysilane. The sorbents containing beta-alanine possess a higher selectivity of Cu2+ ion sorption than the initial gamma-aminopropylsilylated sorbents Держатели документа: Центральная научная библиотека УрО РАН Доп.точки доступа: Yatluk, Yu. G.; Ятлук Юрий Григорьевич; Eremin, D.V.; Neudachina, L.K.; Skorik, Yu.A.