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Alireza Khodabakhshi

Academic rank: Assistant Professor
ORCID: https://orcid.org/0000-0001-8335-5576
Education: PhD.
ScopusId: 23004812200
Faculty: Science
Address: Arak University
Phone:

Research

Title
Cation exchange characterizations of phosphotungstic acid-doped polyvinyl alcohol/polyethersulfone blend membranes by sodium chloride solution
Type
JournalPaper
Keywords
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Year
2013
Journal Journal of Polymer Engineering
DOI
Researchers Seyed Siavash Madaeni ، Sedigheh Amirinejad ، Mehdi Amirinejad ، Seyed mohsen Hosseini ، Alireza Khodabakhshi

Abstract

Cation exchange membranes were prepared based on polyvinyl alcohol (PVA) and polyethersulfone (PES) polymer blends using dimethyl sulfoxide as solvent and phosphotungstic acid (PWA) as functional group agent. The membranes were fabricated by solution casting method. The effects of PVA-to-PES polymer blend ratio and PWA content on the electrochemical ion exchange properties of the prepared membranes, including fixed ion concentration (FIC), membrane potential, permselectivity, surface charge density, transport number and electrical resistance, were studied. The areal electrical resistance at room temperature was reduced by increasing the PES and decreasing the PWA contents of membranes. The results show that the addition of PWA to the membranes provides additional counterion-conducting passages and enhances the FIC, membrane potential, permselectivity and transport number.