Novel heterogeneous cellulose-based ion-exchange membranes for electrodialysis

Heterogeneous membranes are generally prepared by mixing ion-exchange (IE) resins, whether cation or anion resins, with a polymer matrix, in which the resin is well embedded within the polymer in a homogeneous manner. In the present paper, novel membranes were fabricated and different variables were...

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Bibliographic Details
Published in:Polymer bulletin (Berlin, Germany) Germany), 2022-11, Vol.79 (11), p.9753-9777
Main Authors: Naim, Mona M., Batouti, Mervette El, Elewa, Mahmoud M.
Format: Article
Language:English
Subjects:
Acids
Activated carbon
Anion exchanging
Cations
Cellulose
Cellulose acetate butyrates
Cellulose esters
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Electrodialysis
Electrolytes
Esterification
Hydrogels
Ion exchange
Membranes
Methods
Nanoparticles
Organic Chemistry
Original Paper
Physical Chemistry
Polymer Sciences
Polymers
Resins
Soft and Granular Matter
Spectrum analysis
Zeolites
Zirconium
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Summary:Heterogeneous membranes are generally prepared by mixing ion-exchange (IE) resins, whether cation or anion resins, with a polymer matrix, in which the resin is well embedded within the polymer in a homogeneous manner. In the present paper, novel membranes were fabricated and different variables were investigated, such as types of polymer matrix whether cellulose acetate (CA) or cellulose acetate butyrate (CAB), source (properties) of CA, de-esterified membranes, type of IE resins (cationic, anionic, or nonionic), and ground or pristine resins. It was found that ground resins gave thinner membranes with better perm-selectivity for both cationic and anionic IE resins with the two brands of CA tested. The nonionic IE resin gave adverse results as expected, especially when it was pulverized before mixing with the polymers. CAB gave unfavorable results compared with the two types of CA polymers studied and gave lower perm-selectivity especially when the IE resins were ground before mixing to the CAB polymer.
ISSN:0170-0839
1436-2449
DOI:10.1007/s00289-021-03978-2