Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Raja Swaidan"'
Autor:
Shweta Karwa, William J. Koros, Raja Swaidan, Oishi Sanyal, Samuel S. Hays, Manjeshwar G. Kamath, Nitesh Bhuwania, Stephanie T. Hicks
Publikováno v:
Journal of Membrane Science. 551:113-122
This article considers a previously overlooked feature in carbon molecular sieve (CMS) membranes that we term a “hyperskin” present at the outermost region of dense CMS selective layers. Such a feature with much lower permeability, but similar se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7531a0fedce3829fe7ccc6ed48eab342
https://doi.org/10.1016/j.memsci.2018.01.021
https://doi.org/10.1016/j.memsci.2018.01.021
Autor:
Manjeshwar G. Kamath, Gongping Liu, Raja Swaidan, Shilu Fu, William J. Koros, Wulin Qiu, Arun K. Itta
Publikováno v:
Journal of Membrane Science. 546:197-205
Transport properties are reported for asymmetric carbon molecular sieve (CMS) hollow fiber membranes based on polyimide precursors derived from a butanol esterified diamino benzoic acid (DABA) based polyimide, 6FDA-DETDA:DABE. Precursor fiber pretrea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1eb301696a6a5a8af0cf3349bc07a825
https://doi.org/10.1016/j.memsci.2017.10.020
https://doi.org/10.1016/j.memsci.2017.10.020
Publikováno v:
Journal of Membrane Science. 492:116-122
Solution-processable polyimides of intrinsic microporosity (PIM-PIs) comprising relatively inflexible and contorted backbones have demonstrated outstanding molecular-sieving behavior in membrane-based separation of gas/gas pairs. In this work, the ef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b8784c968e6b06cc289ffa87bde93a2
https://doi.org/10.1016/j.memsci.2015.05.044
https://doi.org/10.1016/j.memsci.2015.05.044
Autor:
Fahd Alghunaimi, Ingo Pinnau, Eric Litwiller, Nasser Y. Alaslai, Bader S. Ghanem, Raja Swaidan
Publikováno v:
Journal of Membrane Science. 490:321-327
The synthesis and gas permeation properties of two 6FDA-dianhydride-based polyimides prepared from 2,6-diaminotriptycene (6FDA–DAT1) and its extended iptycene analog (6FDA–DAT2) are reported. The additional benzene ring on the extended triptycene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20b23a36eded10c24d8c60a3c4269d2d
https://doi.org/10.1016/j.memsci.2015.05.010
https://doi.org/10.1016/j.memsci.2015.05.010
Publikováno v:
Macromolecules. 48:6553-6561
Long-term physical aging and plasticization, two mobility-based phenomena that are counterintuitive in the context of “rigid” polymers of intrinsic microporosity (PIMs), were evaluated using pure- and mixed-gas permeation data for representative
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b78d3c5bd9a54405b5db68b5e5334f1d
https://doi.org/10.1021/acs.macromol.5b01581
https://doi.org/10.1021/acs.macromol.5b01581
Publikováno v:
ACS Macro Letters. 4:947-951
Intrinsically ultramicroporous (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47e89d729e39dfdc49da09760577802e
https://doi.org/10.1021/acsmacrolett.5b00512
https://doi.org/10.1021/acsmacrolett.5b00512
Publikováno v:
Journal of Membrane Science. 475:571-581
A sub-Tg thermally-annealed (250 °C, 24 h) ultra-microporous PIM-polyimide bearing a 9,10-diisopropyl-triptycene contortion center and hydroxyl-functionalized diamine (2,2-bis(3-amino-4-hydroxyphenyl)-hexafluoropropane, APAF) exhibited plasticizatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2dd87ec1ef9821766099c1d9a7de5d3b
https://doi.org/10.1016/j.memsci.2014.10.046
https://doi.org/10.1016/j.memsci.2014.10.046
Publikováno v:
Macromolecules. 47:7453-7462
Based on high-pressure pure- and mixed-gas (50:50) CO2/CH4 separation properties of two intrinsically microporous triptycene-based polyimides (TPDA–TMPD and TPDA–6FpDA), the intrachain rigidity central to “conventional PIM” design principles
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c904dbdeda45117857cf6a1f31aeb5e
https://doi.org/10.1021/ma501798v
https://doi.org/10.1021/ma501798v
Publikováno v:
Macromolecules. 47:5104-5114
Highly ultramicroporous, solution-processable polyimides bearing 9,10-bridgehead-substituted triptycene demonstrated the highest BET surface area reported for polyimides (840 m2 g–1) and several new highs in gas selectivity and permeability for hyd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9af123aca5cb948f92fe471f917d351
https://doi.org/10.1021/ma5009226
https://doi.org/10.1021/ma5009226
Publikováno v:
Journal of Membrane Science. 457:95-102
The prototypical solution-processable polymer of intrinsic microporosity, PIM-1, and derivatives thereof offer combinations of permeability and selectivity that make them potential candidate materials for membrane-based gas separations. Paramount to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74510091de4f97fbe758406b8413f398
https://doi.org/10.1016/j.memsci.2014.01.055
https://doi.org/10.1016/j.memsci.2014.01.055