Inga H. Musselman

article

Amine-functionalized (Al) MIL-53/VTEC™ mixed-matrix membranes for H2/CO2 mixture separations at high pressure and high temperature

Edson V. Perez, Grace J.D. Kalaw, John P. Ferraris, Kenneth J. Balkus, more

Journal of Membrane Science > 2017 > 530 > C > 201-212

VTEC™ PI-1388 and 20wt% (Al) NH₂-MIL-53/VTEC™ PI-1388 mixed-matrix membranes (MMMs) with different thicknesses were tested for gas permeation of H₂ and CO₂ from 5 to 30bar and from 35 to 300°C. 50/50 H₂/CO₂ mixtures were also tested at 30bar and 250°C with stage cuts that ranged from 0.05 to 1. Gas permeation data show that the affinity of (Al) NH₂-MIL-53 for VTEC™ PI-1388 is strong enough to perform...

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Composite membranes with a highly selective polymer skin for hydrogen separation

Sumudu N. Wijenayake, Nimanka P. Panapitiya, Cindy N. Nguyen, Yu Huang, more

Separation and Purification Technology > 2014 > 135 > C > 190-198

This study reports the fabrication of a highly hydrogen selective cross-linked polymer skin on a highly permeable mixed matrix membrane. Selective polymer skins were prepared by spin coating a thin layer of 6FDA-durene polymer onto ZIF-8/6FDA-durene mixed matrix membranes followed by subsequent cross-linking of the 6FDA-durene layer with ethylene diamine (EDA) vapor. Resultant membrane yielded significantly...

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MIL-53 frameworks in mixed-matrix membranes

Josephine O. Hsieh, Kenneth J. Balkus, John P. Ferraris, Inga H. Musselman

Microporous and Mesoporous Materials > 2014 > 196 > Complete > 165-174

The MIL-53 metal–organic framework (MOF) is known to change reversibly from an open-pore framework (MIL-53-ht) to a closed-pore framework (MIL-53-lt) depending on the temperature, pressure, or guest molecules absorbed. Three frameworks of the additive, MIL-53-as synthesized (MIL-53-as), MIL-53-ht, and MIL-53-lt, were prepared, characterized, and combined with Matrimid® to form mixed-matrix membranes...

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Metal-organic polyhedra 18 mixed-matrix membranes for gas separation

Edson V. Perez, Kenneth J. Balkus, John P. Ferraris, Inga H. Musselman

Journal of Membrane Science > 2014 > 463 > Complete > 82-93

Crystals of highly soluble metal-organic polyhedra 18 (MOP-18) were synthesized and used as additives in Matrimid ^® 5218 to form mixed-matrix membranes. The MOP-18 linker was functionalized with long alkyl chains to help the crystals dissolve in common organic solvents. Scanning electron microscopy images revealed that the MOP-18 molecules do not aggregate into large particles even at loadings...

article

Stabilization of immiscible polymer blends using structure directing metal organic frameworks (MOFs)

Nimanka P. Panapitiya, Sumudu N. Wijenayake, Yu Huang, David Bushdiecker, more

Polymer > 2014 > 55 > 8 > 2028-2034

We have developed a novel approach for compatibilizing immiscible polymer blends using metal organic frameworks (MOFs). For the first time we demonstrated that the droplet diameter of the dispersed phase in a 1:1 immiscible polymer blend composed of 6FDA-DAM:DABA [copolymer of 4,4-hexafluoroisopropylidene diphthalic anhydride (6FDA), 2,4,6-trimethyl-1,3-phenylenediamine and 3,5-diaminobenzoic acid...

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Doping single-walled carbon nanotubes with surfactant peptides containing electron-donor substituents and nitrogen heterocycles

Dinushi R. Samarajeewa, Gregg R. Dieckmann, Steven O. Nielsen, Inga H. Musselman

Carbon > 2013 > 57 > Complete > 88-98

We examined the potential of a series of aromatic moieties with different electron-donating ability to alter SWCNT electronic properties. The selected aromatic moieties included p-amino-phenylalanine, 3-[4-(dimethylamino)phenyl]propanoic acid, tyrosine, tryptophan, and 4-pyridylalanine. These moieties contained exocyclic electron-donor substituents, such as amine, dimethylamine, and hydroxyl groups,...

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Perfluorocyclobutyl (PFCB)-based polymer blends for proton exchange membrane fuel cells (PEMFCs)

Grace Jones D. Kalaw, Judy Anne N. Wahome, Yuanqin Zhu, Kenneth J. Balkus, more

Journal of Membrane Science > 2013 > 431 > Complete > 86-95

A phase-separated morphology, as observed in block copolymers, for proton exchange materials (PEM) is expected to result in improved PEM fuel cell performance. Blending hydrophilic and hydrophobic polymers provides an easier route to this phase-separated morphology especially for an otherwise difficult block copolymer synthesis. Blends of hydrophilic and hydrophobic perfluorocyclobutyl (PFCB) polymers...

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Nafion-sulfonated dendrimer composite membranes for fuel cell applications

Anjalee D. Liyanage, John P. Ferraris, Inga H. Musselman, Duck-Joo Yang, more

Journal of Membrane Science > 2012 > 392-393 > Complete > 175-180

Novel proton conducting composite membranes were synthesized by blending Nafion ^® polymer with sulfonated organosilicon dendrimers (G3-S). Blending G3-S with Nafion resulted in stable, flexible membranes with loadings up to 10% by weight. The high amount of sulfonic acid groups on the dendrimer increased the ion exchange capacity and improved the water retention capability of the composite...

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Cytotoxicity Screening of Single-Walled Carbon Nanotubes: Detection and Removal of Cytotoxic Contaminants from Carboxylated Carbon Nanotubes

Ruhung Wang, Carole Mikoryak, Synyoung Li, David Bushdiecker, more

Molecular Pharmaceutics > 2011 > 8 > 4 > 1351 - 1361

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Molecular sieving realized with ZIF-8/Matrimid® mixed-matrix membranes

Ma. Josephine C. Ordoñez, Kenneth J. Balkus, John P. Ferraris, Inga H. Musselman

Journal of Membrane Science > 2010 > 361 > 1-2 > 28-37

Zeolitic imidazolate frameworks (ZIFs), that have the potential for gas separation, were used as additives in mixed-matrix membranes (MMMs). ZIF-8, which exhibits the sodalite topology, is composed of zinc (II) ion clusters linked by imidazolate ligands. The ZIF-8 pore aperture is 3.4Å allowing it to readily absorb small molecules such as H ₂ and CO ₂ . ZIF-8/Matrimid ^® MMMs...

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Coating of carbon nanotubes on flexible substrate and its adhesion study

Abdelaziz Rahy, Pooja Bajaj, Inga H. Musselman, Soon Hyung Hong, more

Applied Surface Science > 2009 > 255 > 15 > 7084-7089

The primary goal of this project was to develop a flexible transparent conductor with 100Ω/sq and 90% transmittance in the wavelength range of 400–700nm on a flexible substrate. The best result achieved so far was 110Ω/sq at 88% transmittance using purified single-walled carbon nanotubes (SWNTs) coated on a polyethylene naphthalate (PEN) substrate. The secondary goal was to simplify the overall coating...

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Mixed-matrix membranes containing MOF-5 for gas separations

Edson V. Perez, Kenneth J. Balkus, John P. Ferraris, Inga H. Musselman

Journal of Membrane Science > 2009 > 328 > 1-2 > 165-173

Metal–organic framework 5 (MOF-5) nanocrystals with a high surface area (3000m ² /g) and high thermal stability (up to 400°C) were synthesized and added to Matrimid ^® to form mixed-matrix membranes for gas separations. Scanning electron microscopy (SEM) images of the membrane cross-sections revealed significant plastic deformation of the polymer matrix owing to the strong affinity...

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Mixed-matrix membranes composed of Matrimid® and mesoporous ZSM-5 nanoparticles

Yanfeng Zhang, Kenneth J. Balkus, Inga H. Musselman, John P. Ferraris

Journal of Membrane Science > 2008 > 325 > 1 > 28-39

Mixed-matrix membranes were prepared from Matrimid ^® and mesoporous ZSM-5 nanoparticles containing crystalline ZSM-5. The ideal selectivity for H ₂ /N ₂ separation increased from 79.6 for pure Matrimid ^® to 143 at 10% loading, while the selectivity of O ₂ /N ₂ increased from 6.6 for pure Matrimid ^® to 10.4 at 20% loading. The ideal H ₂ ...

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Gas permeability properties of Matrimid® membranes containing the metal-organic framework Cu–BPY–HFS

Yanfeng Zhang, Inga H. Musselman, John P. Ferraris, Kenneth J. Balkus

Journal of Membrane Science > 2008 > 313 > 1-2 > 170-181

A microporous metal-organic framework Cu–4,4′-bipyridine–hexafluorosilicate (Cu–BPY–HFS), having a surface area of 2000m ² /g, was combined with Matrimid ^® polymer to form free standing films. The permeability properties of Cu–BPY–HFS–Matrimid ^® mixed-matrix membranes were tested for the pure gases H ₂ , N ₂ , O ₂ , CH ₄ , and CO ₂ and...

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Gas Permeability Properties of Mixed-Matrix Matrimid Membranes Containing a Carbon Aerogel: A Material with Both Micropores and Mesopores

Yanfeng Zhang, Inga H. Musselman, John P. Ferraris, Kenneth J. Balkus

Industrial & Engineering Chemistry Research > 2008 > 47 > 8 > 2794 - 2802

article

Effect of Electron-Donating and Electron-Withdrawing Groups on Peptide/Single-Walled Carbon Nanotube Interactions

Vasiliki Z. Poenitzsch, David C. Winters, Hui Xie, Gregg R. Dieckmann, more

Journal of the American Chemical Society > 2007 > 129 > 47 > 14724 - 14732

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Diameter-Selective Solubilization of Single-Walled Carbon Nanotubes by Reversible Cyclic Peptides

Alfonso Ortiz-Acevedo, Hui Xie, Vasiliki Zorbas, William M. Sampson, more

Journal of the American Chemical Society > 2005 > 127 > 26 > 9512 - 9517

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Preparation and Characterization of Individual Peptide-Wrapped Single-Walled Carbon Nanotubes

Vasiliki Zorbas, Alfonso Ortiz-Acevedo, Alan B. Dalton, Mario Miki Yoshida, more

Journal of the American Chemical Society > 2004 > 126 > 23 > 7222 - 7227

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Controlled Assembly of Carbon Nanotubes by Designed Amphiphilic Peptide Helices

Gregg R. Dieckmann, Alan B. Dalton, Paul A. Johnson, Joselito Razal, more

Journal of the American Chemical Society > 2003 > 125 > 7 > 1770 - 1777

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Enhanced gas selectivity in thin film composite membranes of poly(3-(2-acetoxyethyl)thiophene)

Brian D. Reid, Von Howard M. Ebron, Inga H. Musselman, John P. Ferraris, more

Journal of Membrane Science > 2002 > 195 > 2 > 181-192

The gas transport properties of surface-treated poly(3-(2-acetoxyethyl)thiophene) (P3AcET) membranes are reported. Base or acid catalyzed hydrolysis of the ester group of P3AcET yields poly(3-(2-hydroxyethyl)thiophene) (P3HET), a highly permselective conducting polymer. Permeability coefficients were determined for as-cast P3AcET membranes (P _C _O ₂ =1.42, P _O ₂ =0.24, P...

INFONA - science communication portal

Search results for: Inga H. Musselman

Amine-functionalized (Al) MIL-53/VTEC™ mixed-matrix membranes for H2/CO2 mixture separations at high pressure and high temperature

Composite membranes with a highly selective polymer skin for hydrogen separation

MIL-53 frameworks in mixed-matrix membranes

Metal-organic polyhedra 18 mixed-matrix membranes for gas separation

Stabilization of immiscible polymer blends using structure directing metal organic frameworks (MOFs)

Doping single-walled carbon nanotubes with surfactant peptides containing electron-donor substituents and nitrogen heterocycles

Perfluorocyclobutyl (PFCB)-based polymer blends for proton exchange membrane fuel cells (PEMFCs)

Nafion-sulfonated dendrimer composite membranes for fuel cell applications

Cytotoxicity Screening of Single-Walled Carbon Nanotubes: Detection and Removal of Cytotoxic Contaminants from Carboxylated Carbon Nanotubes

Molecular sieving realized with ZIF-8/Matrimid® mixed-matrix membranes

Coating of carbon nanotubes on flexible substrate and its adhesion study

Mixed-matrix membranes containing MOF-5 for gas separations

Mixed-matrix membranes composed of Matrimid® and mesoporous ZSM-5 nanoparticles

Gas permeability properties of Matrimid® membranes containing the metal-organic framework Cu–BPY–HFS

Gas Permeability Properties of Mixed-Matrix Matrimid Membranes Containing a Carbon Aerogel: A Material with Both Micropores and Mesopores

Effect of Electron-Donating and Electron-Withdrawing Groups on Peptide/Single-Walled Carbon Nanotube Interactions

Diameter-Selective Solubilization of Single-Walled Carbon Nanotubes by Reversible Cyclic Peptides

Preparation and Characterization of Individual Peptide-Wrapped Single-Walled Carbon Nanotubes

Controlled Assembly of Carbon Nanotubes by Designed Amphiphilic Peptide Helices

Enhanced gas selectivity in thin film composite membranes of poly(3-(2-acetoxyethyl)thiophene)

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