2024 : 5 : 20
Seyed mohsen Hosseini

Seyed mohsen Hosseini

Academic rank: Professor
ORCID: https://orcid.org/0000-0002-3974-5312
Education: PhD.
ScopusId: 55897505600
Faculty: Engineering
Address: Arak University


Preparation, optimization and characterization of novel ion exchange membranes by blending of chemically modified PVDF and SPPO
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Journal Separation and Purification Technology
Researchers Alireza Khodabakhshi ، Seyed Siavash Madaeni ، T W Xub ، L Wub ، C Wub ، C Lib ، W Nab ، Seyed Abdolali Zolanvari ، Ali Babaei ، Seyed mohsen Hosseini ، Akbar Mobinikhaledi ، javad Ghasemi


Mixing two or more polymers results in various property combinations of the final material. Most polymer pairs are immiscible; consequently, the blends are not formed spontaneously. In this research, a new kind of homogeneous cation exchange membrane was prepared for new applications by blending polyvinylidene fluoride (PVDF) and sulfonated poly (2,6-dimethyl-1,4-phenylene oxide) (SPPO). Chemical reagents were used to modify PVDF powder and improve the miscibility between PVDF and SPPO. The degradation of the PVDF structure by chemical reagents was elucidated by FT-IR, and the miscibility between two polymers was clarified by X-ray diffraction (XRD). The blends were used for membrane preparation, and it was followed by characterization and optimization of the prepared membranes. The stability of the functional groups at different temperatures for three categories of PVDF/SPPO blend membranes in various drying conditions was studied by CHNOS elemental analyzer. Furthermore, the modified PVDF/SPPO blend cation exchange membranes were prepared in various blend ratios. The prepared membranes were characterized and optimized by the analysis of the general properties including water content, IEC (ion exchange capacity), membrane potential, permselectivity, energy consumption, membrane specific resistance, flux of ions and oxidative stability. The thermal behavior of the membranes was analyzed by differential scanning calorimetry (DSC).