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http://dx.doi.org/10.17702/jai.2014.15.1.001

Preparation and Properties of Sulfonated Polyvinylchloride (PVC) Membrane for Capacitive Deionization Electrode by Ultra Sonication Modification  

Hwang, Chi Won (Department of Chemical Engineering, College of Engineering, Chungnam National University)
Oh, Chang Min (Department of Chemical Engineering, College of Engineering, Chungnam National University)
Hwang, Taek Sung (Department of Chemical Engineering, College of Engineering, Chungnam National University)
Publication Information
Journal of Adhesion and Interface / v.15, no.1, 2014 , pp. 1-8 More about this Journal
Abstract
Ion exchange membrane is widely used in various fields such as electro dialysis, diffusion dialysis, redox flow battery, fuel cell. PVC cation exchange membrane using ultrasonic modification was prepared by sulfonation reaction in various sulfonation times. Sulfuric acid was used as a sulfonating agent with ultrasonic condition. We've characterized basic structure of sulfonated PVC cation exchange membrane by FT-IR, EDX, water uptake, ion exchange capacity (IEC), electrical resistance (ER), conductivity, ion transport number and surface morphology (SEM). The presence of sulfonic groups in the sulfonated PVC cation exchange membrane was confirmed by FT-IR. The maximum values of water uptake, IEC, electrical resistance and ion transport number were 40.2%, 0.87 meq/g, $35.2{\Omega}{\cdot}cm^2$ and 0.88, respectively.
Keywords
cation exchange membrane; sulfonation; PVC; ultrasonic;
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