Publication detail

Variations in anion-exchange membrane properties with ionic resin moisture

BULEJKO, P. STRÁNSKÁ, E.

Original Title

Variations in anion-exchange membrane properties with ionic resin moisture

Type

journal article in Web of Science

Language

English

Original Abstract

Moisture content in a strongly hydrophilic ion-exchange resin is one of the key parameters in commercial production of ion-exchange membranes. This work tried to clarify the effect of moisture content in an anion-exchange resin (AER) on the structure and final properties of anion-exchange membranes (AEMs). The AER was modified to 2, 4, 6 and 8% of moisture and then grinded. The modified AER was blended with polyethylene and extruded to prepare AEMs, some of which were hot-pressed. The microstructure and electrochemical properties of the AEMs were then characterized. Variations in electrochemical properties showed no definite moisture effect except ion exchange capacity, which decreased as AER moisture increased. The differences in changes in electrochemical properties were most apparent between pressed and non-pressed AEMs. Permselectivity and ionic resistance behaved similarly with AEMs fixed ion concentration. The ionic resistance decreased with increasing fixed ion concentration. The same was true for permselectivity which is, however, in contradiction to Donnan theory.

Keywords

Anion-exchange membrane, moisture, permselectivity, electrical resistance, microstructure

Authors

BULEJKO, P.; STRÁNSKÁ, E.

Released

16. 4. 2019

Publisher

Springer

Location

Německo

ISBN

0947-7047

Periodical

IONICS

Year of study

25

Number

9

State

Federal Republic of Germany

Pages from

4251

Pages to

4263

Pages count

13

URL

https://link.springer.com/article/10.1007/s11581-019-02984-9

BibTex

@article{BUT156343,
  author="BULEJKO, P. and STRÁNSKÁ, E.",
  title="Variations in anion-exchange membrane properties with ionic resin moisture",
  journal="IONICS",
  year="2019",
  volume="25",
  number="9",
  pages="4251--4263",
  doi="10.1007/s11581-019-02984-9",
  issn="0947-7047",
  url="https://link.springer.com/article/10.1007/s11581-019-02984-9"
}