Influence of the functional group structure on the properties of novel polystyrene-divinylbenzene anion exchangers
Abstract
New anion exchangers for ion chromatography were obtained as a result of the synthesis
including acetylation of styrene-divinylbenzene copolymer, containing 25% of divinylbenzene, reductive
amination of carbonyl groups and following alkylation. The structure of functional groups was varied
using different alkylating agents. By means of suppressed ion chromatography with conductometric
detection the behavior of seven inorganic anions, namely, fluoride, chloride, nitirite, nitrate, bromide,
phosphate and sulphate were studied on obtained anion exchangers. Anion exchangers alkylated with
epoxides are characterized with higher efficiency and have less influence of polystyrene-divinylbenzene
matrix on the retention of polarizable ions of nitrate and bromide
Downloads
References
для определения поляризуемых анионов на полистирол-дивинилбензольных
анионообменниках. // Вест. Моск. ун-та. Сер. 2. Химия. 2007. Т.48. №5. С.352.
2. Касьянова Т.Н., Смоленков А.Д., Пирогов А.В., Шпигун О.А. Влияние
ацилирующего агента на селективность анионообменников и эффективность
разделения. // Вестн. Моск. ун-та. Сер. 2. Химия. 2007. Т.48. №5. С.347.
3. Боголицына А.К., Пирогов А.В., Шпигун О.А., Бухбергер В. Синтез и изучение
ионохроматографических свойств новых анионообменников с конформационно-
подвижными функциональными группами. // Сорбцион. хроматогр. процессы. 2006.
Вып.6. №5. С.827.
4. Penner N.A., Nesterenko P.N., Anion exchange ability of neutral hydrophobic
hypercrosslinked polystyrene. // Anal. Commun. 1999. V.36. P.199.
5. Nowak M., Seubert A. Spacer-modified stationary phases for anion chromatography:
Alkyl- and carbonylalkylspacers - A comparison. // Fresenius J. Anal. Chem. 2000. V.366.
P.341.
6. Касьянова Т.Н., Смоленков А.Д., Пирогов А.В., Шпигун О.А. Синтез и
сравнение хроматографических свойств полимерных анионообменников с
диметилгидразиниевыми и алкиламмониевыми функциональными группами. //
Журн. аналит. химии. 2008. Т.63. С. 47.
7. Vlacil F., Vins I. Modified hydroxyethyl methacrylate copolymers as sorbents for ion
chromatography. II. Influence of the functional group on sorbent selectivity. // J.
Chromatogr. 1987. V.391. P.133.
8. Barron R.E., Fritz J.S. Effect of functional group structure on the selectivity of lowcapacity
anion exchangers for monovalent anions. // J. Chromatogr. 1984. V.284. P.13.
9. Xu H., Hu X. A novel way to prepare anion exchangers based on crosslinked
polystyrene. // Polym. Bulletin. 1998. V.40. P.47.
10. Xu H., Hu X. Preparation of anion exchangers by reductive amination of acetylated
crosslinked polystyrene. // Reactive and Functional Polymers.1999. V.42. P.235.
