Search Results - "Schlick, Shulamith"

Scavenging of Hydroxyl Radicals by Ceria Nanoparticles: Effect of Particle Size and Concentration by Schlick, Shulamith, Danilczuk, Marek, Drews, Andrew R, Kukreja, Ratandeep S

“…The most commonly used proton exchange membranes (PEMs) for hydrogen and direct methanol fuel cells are the perfluorosulfonic acid ionomers (PFSA) such as…”
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Cerium(III) as a Stabilizer of Perfluorinated Membranes Used in Fuel Cells: In Situ Detection of Early Events in the ESR Resonator by Danilczuk, Marek, Schlick, Shulamith, Coms, Frank D

“…We present experiments in an in situ fuel cell (FC) inserted in the resonator of the ESR spectrometer that allowed separate monitoring of radical formation at…”
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Spin Trapping by 5,5-Dimethylpyrroline-N-oxide in Fenton Media in the Presence of Nafion Perfluorinated Membranes:  Limitations and Potential by Bosnjakovic, Admira, Schlick, Shulamith

“…Spin trapping by 5,5-dimethylpyrroline-N-oxide (DMPO) was used for the detection of radicals in Fenton media in the presence and absence of Nafion…”
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Using Cyclodextrins to Encapsulate Oxygen-Centered and Carbon-Centered Radical Adducts: The Case of DMPO, PBN, and MNP Spin Traps by Spulber, Mariana, Schlick, Shulamith

“…We present electron spin resonance (ESR) experiments that describe the interaction of β-cyclodextrin (β-CD) with spin adducts of three spin traps:…”
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Understanding the fingerprint region in the infra-red spectra of perfluorinated ionomer membranes and corresponding model compounds: Experiments and theoretical calculations by Danilczuk, Marek, Lin, Lu, Schlick, Shulamith, Hamrock, Steven J., Schaberg, Mark S.

“…[Display omitted] ► We present an ATR-FTIR study of three major perfluorinated ionomers, Nafion, Aquivion and 3M, with focus on the C–O–C band absorptions. ►…”
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In-Depth Profiling of Degradation Processes in a Fuel Cell: 2D Spectral-Spatial FTIR Spectra of Nafion Membranes by Danilczuk, Marek, Lancucki, Lukasz, Schlick, Shulamith, Hamrock, Steven J, Haugen, Gregory M

“…We present in-depth profiling by micro FTIR of cross sections for Nafion 115 membranes in membrane-electrode assemblies (MEAs) degraded during 52 or 180 h at…”
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Spatial effects in the photodegradation of poly(acrylonitrile-butadiene-styrene): a study by ATR-FTIR by BOKRIA, Jayesh G, SCHLICK, Shulamith

“…Spatial effects in the degradation of polyacrylonitrile-butadiene-styrene (ABS) exposed to ultraviolet radiation and oxygen in a weathering chamber at 318K…”
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Stabilization and Early Degradation of UV-Irradiated Heterophasic Propylene−Ethylene Copolymers Based on ESR, ESR Imaging, UV−Vis, and DSC:  Effect of Ethylene Content and UV Wavelength by Kruczala, Krzysztof, Aris, Wasim, Schlick, Shulamith

“…Heterophasic propylene−ethylene copolymers (HPEC) containing 1 wt % bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate (Tinuvin 770) as a hindered amine…”
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Hydration in the Various Phases of the Triblock Copolymers EO13PO30EO13 (Pluronic L64) and EO6PO34EO6 (Pluronic L62), Based on Electron Spin Resonance Spectra of Cationic Spin Probes by Caragheorgheopol, Agneta, Schlick, Shulamith

“…Aqueous solutions of the triblock copolymers poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) EO13PO30EO13 (Pluronic L64) and EO6PO34EO6…”
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Nafion Perfluorinated Membranes Treated in Fenton Media:  Radical Species Detected by ESR Spectroscopy by Bosnjakovic, Admira, Schlick, Shulamith

“…ESR spectroscopy was used to detect and identify radicals in Nafion perfluorinated membranes exposed to the Fenton reagent based on Ti3+ (TiCl3 + H2O2). This…”
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Phase Separation in Sulfonated Poly(ether ether ketone) (SPEEK) Ionomers by Spin Probe ESR: Effect of the Degree of Sulfonation and Water Content by Brush, David, Danilczuk, Marek, Schlick, Shulamith

“…We present the effect of the degree of sulfonation (DS) and water content on the phase separation in sulfonated poly(ether ether ketone) (SPEEK) ionomers,…”
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Direct ESR detection and spin trapping of radicals generated by reaction of oxygen radicals with sulfonated poly(ether ether ketone) (SPEEK) membranes by Pinteala, Mariana, Schlick, Shulamith

“…The stability of membranes under the strong oxidizing conditions in fuel cells is one of the major challenges in the development of fuel cells based on proton…”
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Fragmentation of Perfluorinated Membranes Used in Fuel Cells: Detecting Very Early Events by Selective Encapsulation of Short-Lived Fragments in β-Cyclodextrin by Spulber, Mariana, Schlick, Shulamith

“…The fragmentation of perfluorinated ionomeric membranes during fuel cell (FC) operation is studied in our laboratory by direct electron spin resonance (ESR)…”
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Visualizing Chemical Reactions and Crossover Processes in a Fuel Cell Inserted in the ESR Resonator: Detection by Spin Trapping of Oxygen Radicals, Nafion-Derived Fragments, and Hydrogen and Deuterium Atoms by Danilczuk, Marek, Coms, Frank D, Schlick, Shulamith

“…We present experiments in an in situ fuel cell (FC) inserted in the resonator of the ESR spectrometer that offered the ability to observe separately processes…”
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Self-Assembling of Perfluorinated Polymeric Surfactants in Nonaqueous Solvents. Electron Spin Resonance Spectra of Nitroxide Spin Probes in Nafion Solutions and Swollen Membranes by Szajdzinska-Pietek, Ewa, Schlick, Shulamith, Plonka, Andrzej

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Measuring Diffusion Coefficients of Nitroxide Radicals in Heterophasic Propylene−Ethylene Copolymers by Electron Spin Resonance Imaging by Kruczala, Krzysztof, Schlick, Shulamith

“…Heterophasic propylene-ethylene copolymers (HPECs), also known as impact-modified polypropylene copolymers (IPC), are an important class of materials because…”
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Ranking the Stability of Perfluorinated Membranes Used in Fuel Cells to Attack by Hydroxyl Radicals and the Effect of Ce(III): A Competitive Kinetics Approach Based on Spin Trapping ESR by Danilczuk, Marek, Perkowski, Andrew J, Schlick, Shulamith

“…The stability of Nafion, stabilized Nafion (StNafion), and 3M and Aquivion membranes to attack by the hydroxyl radical, HO•, was compared in their aqueous…”
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Spatially resolved degradation in heterophasic polymers by ESR imaging and FTIR: The case of propylene-ethylene copolymers by SCHLICK, Shulamith, KRUCZALA, Krzysztof

“…Heterophasic propylene-ethylene copolymers (HPEC) containing bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate (Tinuvin 770) as a hindered amine stabilizer (HAS)…”
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Self-Assembling of Perfluorinated Polymeric Surfactants in Water. Electron-Spin Resonance Spectra of Nitroxide Spin Probes in Nafion Solutions and Swollen Membranes by Szajdzinska-Pietek, Ewa, Schlick, Shulamith, Plonka, Andrzej

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Electron spin resonance study of chemical reactions and crossover processes in a fuel cell: Effect of membrane thickness by Lin, Lu, Danilczuk, Marek, Schlick, Shulamith

“…Spin trapping ESR experiments were performed in a fuel cell inserted in the resonator of the ESR spectrometer, and allow visualization of crossover processes…”
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