Viscosity Modification of Polymerizable Bicontinuous Microemulsion by Controlled Radical Polymerization for Membrane Coating Applications
| Autor: | Mauro Daniel Luigi Bruno, Jan Hoinkis, Ephraim Gukelberger, Alberto Figoli, Raffaella Mancuso, Christian Hitzel, Bartolo Gabriele, Roberto Simonutti, Francesco Galiano |
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| Přispěvatelé: | Gukelberger, E, Hitzel, C, Mancuso, R, Galiano, F, Bruno, M, Simonutti, R, Gabriele, B, Figoli, A, Hoinkis, J |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Radical polymerization Ultrafiltration Filtration and Separation chemical and pharmacologic phenomena 02 engineering and technology engineering.material lcsh:Chemical technology 010402 general chemistry CHIM/04 - CHIMICA INDUSTRIALE 01 natural sciences Article membrane coating Viscosity Coating Rheology Chemical Engineering (miscellaneous) lcsh:TP1-1185 Microemulsion lcsh:Chemical engineering polymerizable bicontinuous microemulsion Process Chemistry and Technology fungi lcsh:TP155-156 021001 nanoscience & nanotechnology 0104 chemical sciences wastewater treatment Membrane Polymerization Chemical engineering controlled radical polymerization engineering viscosity modification 0210 nano-technology |
| Zdroj: | Membranes (Basel) 10 (2020). doi:10.3390/membranes10090246 info:cnr-pdr/source/autori:E. Gukelberger, C. Hitzel, R. Mancuso, F. Galiano, M. D. L. Bruno, R. Simonutti, B. Gabriele, A. Figoli, J. Hoinkis/titolo:Viscosity Modification of Polymerizable Bicontinuous Microemulsion by Controlled Radical Polymerization for Membrane Coating Applications/doi:10.3390%2Fmembranes10090246/rivista:Membranes (Basel)/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:10 Membranes Volume 10 Issue 9 Membranes, Vol 10, Iss 246, p 246 (2020) |
| DOI: | 10.3390/membranes10090246 |
| Popis: | Membrane modification is becoming ever more relevant for mitigating fouling phenomena within wastewater treatment applications. Past research included a novel low-fouling coating using polymerizable bicontinuous microemulsion (PBM) induced by UV-LED polymerization. This additional cover layer deteriorated the filtration capacity significantly, potentially due to the observed high pore intrusion of the liquid PBM prior to the casting process. Therefore, this work addressed an innovative experimental protocol for controlling the viscosity of polymerizable bicontinuous microemulsions (PBM) before casting on commercial ultrafiltration (UF) membranes. Prior to the coating procedure, the PBM viscosity modulation was carried out by controlled radical polymerization (CRP). The regulation was conducted by introducing the radical inhibitor 2,2,6,6-tetramethylpiperidine 1-oxyl after a certain time (CRP time). The ensuing controlled radical polymerized PBM (CRP-PBM) showed a higher viscosity than the original unpolymerized PBM, as confirmed by rheological measurements. Nevertheless, the resulting CRP-PBM-cast membranes had a lower permeability in water filtration experiments despite a higher viscosity and potentially lower pore intrusion. This result is due to different polymeric structures of the differently polymerized PBM, as confirmed by solid-state nuclear magnetic resonance (NMR) investigations. The findings can be useful for future developments in the membrane science field for production of specific membrane-coating layers for diverse applications. |
| Databáze: | OpenAIRE |
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