Synthesis and Characterization of Nylon 6,6-Polyvinyl Alcohol-Based Polyelectrolytic Membrane

被引:0
|
作者
Atia Mahmoud
Mohamed Abu Saied
Abdelrahman Naser
Alaa Fahmy
机构
[1] Al-Azhar University,Chemistry Department, Faculty of Science
[2] Advanced Technology and New Materials Research Institute (ATNMRI),Polymeric Materials Research Department
[3] The City of Scientific Research and Technological Applications (SRTA-City),undefined
来源
Arabian Journal for Science and Engineering | 2023年 / 48卷
关键词
Polymer membranes; Polymer blends; Ionic conductivity; Sulfonated activated carbon; PVA;
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中图分类号
学科分类号
摘要
This work presents the preparation and investigation of blended nylon (N)/polyvinyl alcohol (PVA)-based polyelectrolytic membranes that are modified with different concentrations of sulfuric acid (SA), chlorosulfonic acid (CSA), and sulfonated activated carbon (SAC) as a filler. Scanning electron microscopy (SEM) micrographs illustrated good membrane homogeneity, and no cracks or phase separation were detected. Chemical interaction between N, PVA, and other membrane components was confirmed by Raman scattering spectroscopy and Fourier transform infrared (FTIR). In addition, the molecular structure is verified by energy depressive X-ray (EDX). Furthermore, water and methanol uptake, gel fraction, and IEC were determined as functions of varied membrane modification components. The results revealed that increasing the portion of SA, CSA and SAC led to an increase in IEC and ionic conductivity values reached 2.12 meq/g–0.076 S/cm for (N/PVA-4.0% SA-4.0% SAC), respectively, and 2.71 meq/g–0.087 S/cm for (N/PVA-4.0% CSA-4.0% SAC), respectively, while the IEC and ionic conductivity value for non-modified N/PVA membrane was 0.02 meq/g and zero, respectively. Such results enhance the potential feasibility of modified N/PVA electrolytic membranes for fuel cell (FC) applications.
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页码:8941 / 8956
页数:15
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