A Novel Sulfonated Poly(ether ether ketone ketone)s Used as PEMFC

Abstract

Abstract: A new sulfonated monomer 1,4-bi(3-sodium sulfonate-4-fluorobenzoyl)benzene was prepared by sulfonation of 1,4-bi(4-fluorobenzoyl)benzene with fuming sulfuric acid. Then a series of sulfonated PEEKKs derived from the monomer were synthesized via aromatic nucleophilic substitution polycondensation of phenolphthalein with different molar ratios of 1,4-bi(3-sodium sulfonate-4-fluorobenzoyl)benzene to 1,4-bi(4-fluorobenzoyl)benzene. The structure and property of the polymers were characterized and studied. Most of the polymers were easily cast into tough membranes. The membranes show a high ion exchange capacity and very good prospective in proton exchange membranes(PEM) usage.

Key words: Sulfonation, PEEKK, Fuel cell, Proton exchange membrane(PEM)

CLC Number:

O631

TrendMD:

LI Xian-Feng, NA Hui, LU Hui . A Novel Sulfonated Poly(ether ether ketone ketone)s Used as PEMFC[J]. Chem. J. Chinese Universities, 2004, 25(8): 1563.

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A Novel Sulfonated Poly(ether ether ketone ketone)s Used as PEMFC

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