Effect of Functionalization and the Nature of Ionogenic Groups of Hyperbranched Polymers on the Electrochemical Characteristics of Asymmetric Bipolar Membranes

Asymmetric bipolar membranes modified with phosphorylated and carboxylated hyperbranched polymers with different degrees of functionalization have been synthesized and studied. The effect of the nature of ionogenic groups of functionalized polymers on both individual electrochemical characteristics...

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Bibliographic Details
Published in:Petroleum chemistry 2018-02, Vol.58 (2), p.137-144
Main Authors: Utin, S. V., Loza, S. A., Bespalov, A. V., Zabolotsky, V. I.
Format: Article
Language:English
Subjects:
Asymmetry
Chemical synthesis
Chemistry
Chemistry and Materials Science
Current efficiency
Dilution
Electric properties
Electrodialysis
Industrial Chemistry/Chemical Engineering
Membranes
Polymer industry
Polymers
Voltage drop
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Summary:Asymmetric bipolar membranes modified with phosphorylated and carboxylated hyperbranched polymers with different degrees of functionalization have been synthesized and studied. The effect of the nature of ionogenic groups of functionalized polymers on both individual electrochemical characteristics of asymmetric bipolar membranes and their efficiency in adjusting the pH of dilute solutions by electrodialysis has been studied. It has been found that an increase in the degree of functionalization of hyperbranched polymers leads to an increase in the current efficiency and a decrease in the voltage drop across the asymmetric bipolar membranes.
ISSN:0965-5441
1555-6239
DOI:10.1134/S0965544118020068