Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 41, Issue 13, Pages 5816-5823Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2016.02.037
Keywords
Interpenetrating polymer network; Quaternized polysulfone; Poly(vinyl alcohol); Ionic conductivity
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Funding
- National Natural Science Foundation of China (NSFC) [51503161]
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Chloromethylated polysulfone is firstly converted to cationic groups under the condition of N,N,N',N'-tetramethylethylenediamine in dimethyl sulfoxide, then blended with poly(vinyl alcohol) (PVA) solution, followed by casting, crosslinking and treatment in trimethylamine solution for constructing anion-conducting interpenetrating polymer networks (IPNs). Fourier transform infrared spectra, thermogravimetric analysis and scanning electron microscopy are employed to characterize the structure and morphology of IPNs. The properties of IPNs including water uptake, mechanical property, thermal stability and ionic conductivity are studied. Compared with the quaternized polysulfone membrane, the IPN derived from 60% CMPSF and 40% PVA shows better balanced properties. It exhibits an ionic conductivity of 1.82 x 10(-2) S cm(-1) at 60 degrees C and nearly 80% ionic conductivity of the original value after being treated in 2 M NaOH solution for 120 h at 60 degrees C. Copyright (C) 2016, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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