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Yee RS, Zhang K, Ladewig BP. The Effects of Sulfonated Poly(ether ether ketone) Ion Exchange Preparation Conditions on Membrane Properties. Membranes (Basel). 2013;3(3):182-95doi: 10.3390/membranes3030182.
Yee, R. S., Zhang, K., & Ladewig, B. P. (2013). The Effects of Sulfonated Poly(ether ether ketone) Ion Exchange Preparation Conditions on Membrane Properties. Membranes, 3(3), 182-95. https://doi.org/10.3390/membranes3030182
Yee, Rebecca S L, et al. "The Effects of Sulfonated Poly(ether ether ketone) Ion Exchange Preparation Conditions on Membrane Properties." Membranes vol. 3,3 (2013): 182-95. doi: https://doi.org/10.3390/membranes3030182
Yee RS, Zhang K, Ladewig BP. The Effects of Sulfonated Poly(ether ether ketone) Ion Exchange Preparation Conditions on Membrane Properties. Membranes (Basel). 2013 Aug 13;3(3):182-95. doi: 10.3390/membranes3030182. PMID: 24956945; PMCID: PMC4021939.
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Membranes (Basel). 2013 Aug 13;3(3):182-95. doi: 10.3390/membranes3030182.

The Effects of Sulfonated Poly(ether ether ketone) Ion Exchange Preparation Conditions on Membrane Properties.

Membranes

Rebecca S L Yee, Kaisong Zhang, Bradley P Ladewig

Affiliations

  1. Department of Chemical Engineering, Monash University, Clayton VIC 3800, Australia. [email protected].
  2. Institute of Urban Environments, Chinese Academy of Science, 1799 Jimei Road, Xiamen 361021, China. [email protected].
  3. Department of Chemical Engineering, Monash University, Clayton VIC 3800, Australia. [email protected].

PMID: 24956945 PMCID: PMC4021939 DOI: 10.3390/membranes3030182

Abstract

A low cost cation exchange membrane to be used in a specific bioelectrochemical system has been developed using poly(ether ether ketone) (PEEK). This material is presented as an alternative to current commercial ion exchange membranes that have been primarily designed for fuel cell applications. To increase the hydrophilicity and ion transport of the PEEK material, charged groups are introduced through sulfonation. The effect of sulfonation and casting conditions on membrane performance has been systematically determined by producing a series of membranes synthesized over an array of reaction and casting conditions. Optimal reaction and casting conditions for producing SPEEK ion exchange membranes with appropriate performance characteristics have been established by this uniquely systematic experimental series. Membrane materials were characterized by ion exchange capacity, water uptake, swelling, potential difference and NMR analysis. Testing this extensive membranes series established that the most appropriate sulfonation conditions were 60 °C for 6 h. For mechanical stability and ease of handling, SPEEK membranes cast from solvent casting concentrations of 15%-25% with a resulting thickness of 30-50 µm were also found to be most suitable from the series of tested casting conditions. Drying conditions did not have any apparent impact on the measured parameters in this study. The conductivity of SPEEK membranes was found to be in the range of 10-3 S cm-1, which is suitable for use as a low cost membrane in the intended bioelectrochemical systems.

References

  1. J Colloid Interface Sci. 2006 Jun 15;298(2):845-53 - PubMed
  2. Trends Biotechnol. 2008 Aug;26(8):450-9 - PubMed

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