Protolytic properties of aminocarboxylic polyampholytes based on modacryl polymeric matrix
Abstract
The ion exchangers have been obtained by treatment of acrylonitrile-vinylchloride co-polymer with dimetylaminopropylamine and potassium hydroxide aqueous solutions. It has been shown that potentiometric titration alone cannot be used to distinguish between anionic and cationic groups. For determination of their types, sorption of both cations and anions of the supporting electrolyte should be measured. It has been found out that four types of the ion exchange sites form in these polyampholytes: free amino and carboxylic groups and their bifunctional associates.
About the Authors
P. V. Nesteronok
Институт физико-органической химии НАН Беларуси
Belarus
Belarus
V. S. Soldatov
Институт физико-органической химии НАН Беларуси
Belarus
Belarus
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