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Viscosity Modification of Polymerizable Bicontinuous Microemulsion by Controlled Radical Polymerization for Membrane Coating Applications
- Source :
- 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)
- Publication Year :
- 2020
- Publisher :
- Molecular Diversity Preservation International, Basel, 2020.
-
Abstract
- 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.
- Subjects :
- 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
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- 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)
- Accession number :
- edsair.doi.dedup.....76fc015593b5db938963869651f43fd1
- Full Text :
- https://doi.org/10.3390/membranes10090246