Synthesis of poly(arylene ether ketone)s bearing skeletal crown ether units for cation exchange membranes

Bram Zoetebier, Sinem Tas, G. Julius Vancso, Kitty Nijmeijer, Mark A. Hempenius*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

14 Citations (Scopus)
16 Downloads (Pure)


Poly(arylene ether ketone)s (PAEKs) are the most commonly known high-performance materials used for ion exchange and fuel cell membranes. Described here is the design of novel sulfonated PAEKs (SPAEKs) and nonsulfonated PAEKs containing crown ether units in the main chain, which can be used in sensing applications and ion-selective membranes. To this end, 4,4′(5′)-di(hydroxybenzo)-18-crown-6 was synthesized and used as monomer in a step growth polymerization to form crown ether-containing PAEKs and SPAEKs. The successful synthesis of PAEKs containing 18-crown-6 and sulfonate groups was confirmed by gel permeation chromatography, Fourier transform infrared spectroscopy, and nuclear magnetic resonance spectroscopy. Membranes are fabricated from the sulfonated polymers. Potassium ion transport properties of the SPAEK and crown ether-containing SPAEK membranes are assessed by diffusion dialysis. Potassium ion diffusion in the crown ether-containing SPAEK membranes is almost four times lower than K+ diffusion in the native polymer membranes, without crown ether
Original languageEnglish
Pages (from-to)2786-2793
JournalJournal of polymer science. Part A: Polymer chemistry
Issue number23
Publication statusPublished - 9 Aug 2015


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