A5007422538- Membrane Separation Technologies
- Membrane-based Ion Separation Techniques
- Fuel Cells and Related Materials
- Polymer Surface Interaction Studies
- Membrane Separation and Gas Transport
- Solar-Powered Water Purification Methods
- Advanced Sensor and Energy Harvesting Materials
- Graphene and Nanomaterials Applications
- Phosphorus and nutrient management
- Polymer Nanocomposites and Properties
- Water Treatment and Disinfection
- Microplastics and Plastic Pollution
- Advanced Physical and Chemical Molecular Interactions
- Graphene research and applications
- Nanopore and Nanochannel Transport Studies
- Electrospun Nanofibers in Biomedical Applications
- Synthesis and properties of polymers
- Microbial Fuel Cells and Bioremediation
- Adsorption and biosorption for pollutant removal
- Silicone and Siloxane Chemistry
- Pharmaceutical and Antibiotic Environmental Impacts
- Algal biology and biofuel production
- Oil and Gas Production Techniques
- Marine Biology and Environmental Chemistry
- Catalysis and Hydrodesulfurization Studies
Ben-Gurion University of the Negev
2016-2025
Institut für Zuckerrübenforschung
2016-2021
Beilstein-Institut
2019
Institute for Advanced Study
2016-2019
KU Leuven
2013-2016
University of Duisburg-Essen
2012
The University of Texas at Austin
1977-1978
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLCST Behavior in Polymer BlendsR. E. Bernstein, C. A. Cruz, D. R. Paul, and J. W. BarlowCite this: Macromolecules 1977, 10, 3, 681–686Publication Date (Print):May 1, 1977Publication History Published online1 May 2002Published inissue 1 1977https://doi.org/10.1021/ma60057a037Request reuse permissionsArticle Views2054Altmetric-Citations179LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since...
Abstract A summary of the transitional behavior blends containing poly(vinylidene fluoride), PVF 2 , and various oxygen‐containing polymers is presented. These data are used to establish presence a single miscible amorphous phase. The depression melting point in those judged be analyzed using standard thermodynamic arguments determine heats mixing between diluents . exothermic indicating strong interactions binary pairs. comparison observed interaction strengths dipole moments suggests that...
Concentration polarization-enhanced radical graft polymerization, a facile surface modification technique, was examined as an approach to reduce bacterial deposition onto RO membranes and thus contribute mitigation of biofouling. For this purpose membrane ESPA-1 surface-grafted with zwitterionic negatively positively charged monomers. The low monomer concentrations degrees grafting employed in modifications moderately reduced flux (by 20–40%) did not affect salt rejection, yet produced...
An advanced synthesis protocol for the preparation of Thin-Film Nanocomposite (TFN) membranes is presented.
Biofouling is the main challenge in operation of anaerobic membrane bioreactors (AnMBRs). strongly depends on temperature; therefore, we hypothesize that interactions and viscoelastic properties soluble microbial products (SMP) extracellular polymeric substances (EPS) vary with temperature, consequently influencing permeability. This study compares performance an AnMBR operated at a similar permeate flux two temperatures. The transmembrane pressure rose rapidly after 5 ± 2 days 25°C but only...
Membrane modification by concentration polarization (CP)-enhanced radical graft polymerization using a dilute aqueous solution of appropriate monomer was examined as method for increasing rejection boric acid reverse osmosis (RO) membranes. On the basis suggested physicochemical rationales number monomers were in order to determine those with lowest affinity toward compared water. The improvement modified membrane performance mainly attributed sealing less selective areas (“defects”)...
Surface functionalization using two-dimensional (2D) graphene oxide (GO) materials is a promising technique to enhance the biofouling resistance of membranes used in water purification and reuse. However, role GO exposure, which crucial for contact-mediated toxicity mechanism, has not been well evaluated or elucidated previous studies. Herein, we employ bioinspired polydopamine chemistry fabricate GO-functionalized through two strategies: coating blending. The types displayed comparable...
Biofouling in anaerobic membrane bioreactors (AnMBRs) has not been studied widely. Moreover, the effect of surface properties on biofilm formation beyond initial deposition is controversial. We investigated biofouling with polyvinyldifluoride, polyacrylonitrile, and zwitterion-modified polyethersulfone ultrafiltration membranes having different during 72 h filtration using natural anaerobes isolated from AnMBR analyzed characteristics by physicochemical molecular techniques. A decrease...
Membrane fouling in desalination and wastewater treatment increases operating costs energy consumption. Accordingly, research efforts have focused on developing new membrane materials surface treatments that can resist fouling. Due to the case-specific nature of fouling, there is limited quantification impacts these novel anti-fouling membranes water systems. To address this gap, we report results high-level analyses evaluated savings cost, consumption, life-cycle greenhouse gas emissions...
A strong polyelectrolyte hydrogel was graft copolymerized on a polyethersulfone (PES) ultrafiltration (UF) membrane using vinyl sulfonic acid (VSA) as the functional monomer, and N,N'-methylenbisacrylamide (MBAA) cross-linker monomer. This carried out in one simple step UV photoirradiation method. The effect of polymerization conditions degree grafting (DG) investigated gravimetric method which measures total grafted membrane, with ATR-FTIR spectroscopy indicates monomer fraction layer. VSA...
A number of techniques are used for testing the anti-biofouling activity surfaces, yet correlation between different results is often questionable. In this report, initial bacterial deposition (fast tests, reported previously) and biofilm growth (much slower tests) was analyzed on a pristine surface-modified reverse osmosis membrane ESPA-1. The modified with grafted hydrophilic polymers bearing negatively charged, positively charged zwitter-ionic moieties. Using three strains it found that...
Antibacterial reduced graphene oxide – ZnO nanocomposite was synthesized by a one-step sonication method. The antibiofouling surface property of incorporated polymeric membrane high with minimum Zn<sup>2+</sup> leaching.
Abstract The transitional behavior of poly(vinylidene fluoride) (PVF 2 ) blends with poly(methyl acrylate) and poly(ethyl was examined by differential thermal analysis dynamic mechanical testing. Both blend systems were judged to be miscible on the bases presence single, composition dependent glass transitions strong melting point depression PVF component, Blends poly(isopropyl found immiscible. These results suggest that miscibility acrylate series depends a specific attractive interaction...
Abstract Blends of poly(vinylidene fluoride) PVF 2 , with poly(vinyl acetate), PVAc; propionate), PVPr; and butyrate), PVBu, were prepared by solution blending. Solutions containing either PVPr or PVBu exhibited phase separation, it was concluded that neither these polymers are miscible . Phase separation did not occur solutions PVAc. Dried samples this blend system subjected to differential thermal analysis, dynamical mechanical testing, visual observations their melts. From results, PVAc...