Assessment of alkaline fuel cell technol
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Article
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2002
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Elsevier Science
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English
β 138 KB
Here novel biphenol-based wholly aromatic poly(arylene ether sulfone)s containing up to two pendant sulfonate groups per repeat unit were prepared by direct aromatic nucleophilic substitution polycondensation of disodium 3,3'disulfonate-4,4'-dichlorodiphenylsulfone, 4,4'dichlorodiphenylsulfone and 4