Journal article
Separation of saturated fatty acids and fatty acid methyl esters with epoxy nanofiltration membranes
RSC Advances, Vol.7(88), pp.55626-55632
12/08/2017
DOI: 10.1039/c7ra11223h
Abstract
Epoxy nanofiltration membranes were fabricated by the step polymerization of a primary diamine and a diepoxide or triepoxide conomomer. Membrane selectivity and flux were tuned by changing the identity of the diepoxides and by increasing the concentration of triepoxides in the polymerization. The membranes were used to separate even chain length saturated fatty acids (FAs) and saturated fatty acid methyl esters (FAMEs) that possessed molecular weights between 80–300 g mol−1. Our membranes show excellent selectivities of up to 100 : 1 for the separation of the C4–C18 FAMEs. The flux of the FAMEs through the membranes showed an exponential dependence based on the number of carbons. Fabrication of thin epoxy membranes with thicknesses of 150 nm allowed for an increase in flux of FAMEs through the membrane and demonstrated that these separations can be used under industrially relevant conditions.
Details
- Title: Subtitle
- Separation of saturated fatty acids and fatty acid methyl esters with epoxy nanofiltration membranes
- Creators
- Chad M GilmerChristian ZvokelAlexandra VickNed B Bowden - University of Iowa, Chemistry
- Resource Type
- Journal article
- Publication Details
- RSC Advances, Vol.7(88), pp.55626-55632
- DOI
- 10.1039/c7ra11223h
- ISSN
- 2046-2069
- eISSN
- 2046-2069
- Publisher
- Royal Society of Chemistry; Cambridge
- Copyright
- © The Royal Society of Chemistry 2017
- Grant note
- DOI: 10.13039/100005825, name: National Institute of Food and Agriculture, award: USDA-NIFA-2015-67021-23049; DOI: 10.13039/100000002, name: NIH, award: S10 RR022498-01
- Language
- English
- Date published
- 12/08/2017
- Academic Unit
- Chemistry
- Record Identifier
- 9983763599402771
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