Вид документа : Статья из журнала Шифр издания : 54/P 91 Автор(ы) : Pestov A. V., Ezhikova M. A., Kodess M. I., Azarova Yu. A., Bratskaya S.YU. Заглавие : Preparation of a sorbent for metal ions based on N-(5-methylimidazol-4- ylmethyl) chitosan with medium degree of substitution [Электронный ресурс] Место публикации : Russian Journal of Applied Chemistry. - 2014. - Vol.87, №1. - С. 82-87 Систем. требования: http://download.springer.com/static/pdf/18/art%253A10.1134%252FS1070427214010121.pdf?auth66=1408075753_546b523b58da74e027aa1ca950641a6c&ext=.pdf Примечания : Bibliogr. : p. 87 (27 ref.). - 13.08.2014 ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): heterocycle-containing chelating --chitosans--amino polymer Аннотация: A procedure was developed for preparing a heterocycle-containing chelating amino polymer, N-(5-methylimidazol-4-ylmethyl) chitosan, by polymer-analogous transformations of chitosan in reaction with 4-chloromethyl-5-methylimidazole. The procedure allows synthesis of the polymer with the degree of substitution of up to 0.8, with simultaneous formation of the cross-linked structure. The structure of the polymers prepared was proved by IR and 13C NMR spectroscopy. The ability of N-(5-methylimidazol-4-ylmethyl) chitosan with the degree of substitution of 0.54 to sorb Cu2+ and Ni2+ ions was evaluated. According to the sorption isotherms, the sorption capacity of this derivative exceeds that of the unmodifi ed polymer by a factor of 5. Доп.точки доступа: Pestov, A. V.; Ezhikova, M. A.; Kodess, M. I.; Кодесс Михаил Исаакович; Azarova, Yu. A.; Bratskaya, S.YU.