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Article

UV-Polymerized Vinylimidazolium Ionic Liquids for Permselective Membranes

1
Faculty of Interdisciplinary Research, Department Life, Light & Matter, University of Rostock, Albert-Einstein-Straße 25, 18059 Rostock, Germany
2
Institute of Chemistry, University of Rostock, Albert-Einstein-Straße 3a, 18059 Rostock, Germany
3
Institute of Physics, University of Rostock, Albert-Einstein-Straße 23, 18059 Rostock, Germany
*
Author to whom correspondence should be addressed.
Membranes 2020, 10(11), 308; https://doi.org/10.3390/membranes10110308
Received: 29 September 2020 / Revised: 23 October 2020 / Accepted: 26 October 2020 / Published: 28 October 2020
(This article belongs to the Special Issue New Phenomenological Findings in Nanofiltration)
Ionic liquids are highly charged compounds with increasing applications in material science. A universal approach to synthesize free-standing, vinylalkylimidazolium bromide-containing membranes with an adjustable thickness is presented. By the variation of alkyl side chains, membrane characteristics such as flux and mechanical properties can be adjusted. The simultaneous use of different ionic liquids (ILs) in the synthesis can also improve the membrane properties. In separation application, these charged materials allowed us to retain charged sugars, such as calcium gluconate, by up to 95%, while similar neutral compounds such as glucose passed the membrane. An analysis of the surface conditions using atomic force microscopy (AFM) confirmed the experimental data and explains the decreasing permeance and increased retention of the charged sugars. View Full-Text
Keywords: polymerized ionic liquids; polymeric membranes; membrane surface; membrane casting; nanofiltration polymerized ionic liquids; polymeric membranes; membrane surface; membrane casting; nanofiltration
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MDPI and ACS Style

Sommer, F.O.; Appelt, J.-S.; Barke, I.; Speller, S.; Kragl, U. UV-Polymerized Vinylimidazolium Ionic Liquids for Permselective Membranes. Membranes 2020, 10, 308. https://doi.org/10.3390/membranes10110308

AMA Style

Sommer FO, Appelt J-S, Barke I, Speller S, Kragl U. UV-Polymerized Vinylimidazolium Ionic Liquids for Permselective Membranes. Membranes. 2020; 10(11):308. https://doi.org/10.3390/membranes10110308

Chicago/Turabian Style

Sommer, Fridolin O., Jana-Sophie Appelt, Ingo Barke, Sylvia Speller, and Udo Kragl. 2020. "UV-Polymerized Vinylimidazolium Ionic Liquids for Permselective Membranes" Membranes 10, no. 11: 308. https://doi.org/10.3390/membranes10110308

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