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Search Publications by: Steven R Kline (Fed)

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Displaying 1 - 25 of 43

The Very Small-Angle Neutron Scattering Instrument at the National Institute of Standards and Technology

February 27, 2022
John Barker, James Moyer, Steven Kline, G. Jensen, Jeremy Cook, Cedric V. Gagnon, Elizabeth Kelley, Jean Philippe Chabot, Nicholas C. Maliszewskyj, Chirag B. Parikh, Wangchun Chen, C. Glinka
A description and the performance of the Very Small-Angle Neutron Scattering (VSANS) Diffractometer at the National Institute of Standards and Technology are presented. The measurement range of the instrument extends over three decades of momentum transfer

Solution Structure of Zinc-Seamed C-alkylpyrogallol[4]arene Dimeric Nanocapsules

January 15, 2021
Harshita Kumari, Wei G. Wycoff, Collin M. Mayhan, Steven R. Kline, Joshua R. So, Carol A. Deakyne, John E. Adams, Jerry L. Atwood
The structural stability and solution geometry of zinc-seamed C-propylpyrogallol[4]arene dimers with ligands has been studied in solution using in situ neutron scattering and 2D-DOSY NMR 15 methods. In comparison with the structures of the analogous copper

Manipulating Three-Dimensional Gel Network Entanglement by Thin Film Shearing

February 25, 2016
Harshita Kumari, Steven R. Kline, Stuart R. Kennedy, Christopher Garvey, Colin L. Raston, Jerry L. Atwood, Jonathan W. Steed
Vortex fluidic mediated shearing of supramolecular gels in thin films leads to complete disruption of fluorous bis-urea derived gels. Hydrocarbon analogues however, are only partially disrupted, which emphasizes the resistance of nonfluorous bis-urea

Fluorous 'Ponytails' Lead to Strong Gelators Showing Thermally Induced Structure Evolution

September 3, 2015
Harshita Kumari, Sarah E. Armitage, Steven R. Kline, Krishna K. Damodaran, Stuart R. Kennedy, Jerry L. Atwood, Jonathan W. Steed
Appending perfluoroalkyl substituents to bis(urea) gelators results in significantly decreased interchain interactions with markedly thinner fibres and hence more cross-linked and more transparent gels with potential applications in the crystallisation of

Flexible metal-organic framework compounds: In situ studies for selective CO2 capture

June 19, 2015
Andrew J. Allen, Laura Espinal, Winnie K. Wong-Ng, Wendy Queen, Craig Brown, Steven R. Kline, Kristi L. Kauffman, Jeffrey T. Culp
Results from in situ experiments are presented to correlate carbon capture with dynamic structural changes in two flexible metal-organic framework (MOF) materials: porous coordination polymers (PCPs) exhibiting promising carbon dioxide adsorption

Thermodynamic Interactions and Phase Behavior of Multicomponent Blends Containing Supercritical Carbon Dioxide, Styrene-Acrylonitrile Random Copolymer, and Deuterated Poly(methyl methacrylate)

November 7, 2014
Nicholas P. Young, Sebnem Inceoglu, Gregory M. Stone, Andrew J. Jackson, Steven R. Kline, Stephane Costeux, Nitash P. Balsara
Small-angle neutron scattering (SANS) was used to probe the phase behavior of multicomponent mixtures of supercritical carbon dioxide (scCO 2), styrene-acrylonitrile random copolymer, and deuterated poly(methacrylate). Homogeneous ternary mixtures phase

Aqueous Solubilization of Hydrophobic Supramolecular Metal-Organic Nanocapsules

June 1, 2014
Harshita Kumari, Steven R. Kline, Jerry L. Atwood
Micelles of metal-seamed C-alkylpyrogallol[4]arene-based (PgC nM) hexamers and dimers in water have been formulated and characterized using in situ scattering techniques. The aqueous solubilization of these hydrophobic nanocapsules is facilitated by the