Synthesis and physicochemical properties of chelating sorbents containing functional groups of N-aryl-3-aminopropionic acids / Neudachina L. K.,Yaduk Yu. G.,Baranova N. V.,Pestov A. V.,Vshivkov A. A.,Plekhanova A. Yu.,Zorina M. V. // RUSSIAN CHEMICAL BULLETIN. - 2006. - V. 55, l. 5. - P. 828-834.

ISSN/EISSN:

1066-5285 / нет данных

Type:

Article

Abstract:

Two types of chelating sorbents with different types of addition of iminodipropionate groups to a polymeric matrix were synthesized: carboxyethylated aminopolystyrene (sorbent 1) based on linear polystyrene and carboxyethylaminomethylpolystyrene (sorbent 2) based on the copolymer of styrene and divinylbenzene. The ionization constants and concentrations of functional groups of the sorbents (exchange capacity for hydrogen ions) were determined. The sorbents exhibit high selectivity for copper(II) ions with the maximum of sorption from ammonia-acetate buffer solutions lying in a range of pH 5.0-7.5. The time needed for a solution of copper(II)-sorbent system with continuous stirring to reach exchange equilibrium is 3.5 and 2 h for sorbents 1 and 2, respectively. The exchange capacity for copper(II) ions is 2.54 and 0.10 mmol g(-1), respectively.

Author keywords:

synthesis; carboxyethylaminopolystyrene; carboxyethylaminomethylpolystyrene; ionization constant; exchange capacity for hydrogen ions; exchange capacity for copper(II) ions; selectivity of ion exchang

DOI:

10.1007/s11172-006-0339-3

Web of Science ID:

ISI:000241040200012

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAY
Publisher	CONSULTANTS BUREAU/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013 USA
Language	English
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Multidisciplinary
Author-Email	Ludmila.Neudachina@usu.ru eop@ios.uran.ru
Number-of-Cited-References	31
Usage-Count-Since-2013	1
Journal-ISO	Russ. Chem. Bull.
Doc-Delivery-Number	091PG