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Published in 2017 at "Journal of Membrane Science"
DOI: 10.1016/j.memsci.2017.01.025
Abstract: Abstract In this work, we study the adsorption and diffusion of nitrogen and carbon dioxide through an atomistically detailed model of a thermally rearranged polybenzoxazole (TR-PBO) polymer membranes, via equilibrium molecular dynamics (MD) simulations. This…
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Keywords:
diffusion;
gas mixture;
thermally rearranged;
sorption ... See more keywords
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Published in 2019 at "Journal of Membrane Science"
DOI: 10.1016/j.memsci.2019.03.067
Abstract: Abstract Polybenzimidazole (PBI) is highly selective for H2 removal from mixtures with CO2, but it exhibits low gas permeabilities. Celazole® PBI was blended with more permeable HAB-6FDA-CI, an ortho-functional thermally rearrangeable polyimide, to improve its…
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Keywords:
gas;
separation properties;
thermally rearranged;
heat treatment ... See more keywords
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Published in 2020 at "Journal of Membrane Science"
DOI: 10.1016/j.memsci.2020.118414
Abstract: Abstract Mixed-matrix membrane (MMM) is an effective way to overcome trade-off limitations of conventional polymeric membranes. However, the existence of defect voids at the polymer/filler interface often limits their performance improvement. Similar issues are also…
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Keywords:
type porous;
cardo type;
matrix;
porous organic ... See more keywords
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Published in 2018 at "Polymer"
DOI: 10.1016/j.polymer.2018.10.033
Abstract: Abstract The gas transport properties of the mixed matrix membranes (MMM) prepared from the synthesized, structurally different poly(hydroxyimide)s (HPI) and mesoporous MCM-41 silica particles were investigated. The both series of filled and unfilled precursors were…
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Keywords:
thermally rearranged;
poly hydroxyimide;
gas;
mcm silica ... See more keywords
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Published in 2019 at "Polymer"
DOI: 10.1016/j.polymer.2019.121945
Abstract: Abstract Simultaneously achieving excellent mechanical properties and superior gas separation performance remains a great challenge for thermally rearranged polymers when applied as the membrane materials in large scale gas separation applications. Herein, different heteroaromatic non-TR-able…
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Keywords:
gas separation;
poly benzoxazole;
thermally rearranged;
gas ... See more keywords
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Published in 2020 at "Separation and Purification Technology"
DOI: 10.1016/j.seppur.2020.116778
Abstract: Abstract In this study, we explore the use of two kinds of inorganic sieves, microporous MFI zeolite and mesoporous MCM-41 silica, as fillers to enhance the gas transport characteristics of thermally rearranged (TR) poly(hydroxyimides) (HPI).…
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Keywords:
matrix;
gas transport;
gas;
thermally rearranged ... See more keywords