Breathable, Polydopamine-Coated Nanoporous Membranes That Selectively Reject Nerve and Blister Agent Simulant Vapors

Breathable, Polydopamine-Coated Nanoporous Membranes That Selectively Reject Nerve and Blister Agent Simulant Vapors

A laminated thin-film composite (TFC) membrane system consisting of an ultrafiltration support, an ordered, nanoporous, polymerized lyotropic liquid crystal (LLC) intermediate layer, and an ultrathin, dense polydopamine top layer was developed for use as a “breathable” chemical-protective garment ma...

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Veröffentlicht in:Industrial & engineering chemistry research 2019-11, Vol.58 (47), p.21890-21893
Hauptverfasser: Dwulet, Gregory E, Dischinger, Sarah M, McGrath, Michael J, Basalla, Andrew J, Malecha, John J, Noble, Richard D, Gin, Douglas L
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container_end_page 21893
container_issue 47
container_start_page 21890
container_title Industrial & engineering chemistry research
container_volume 58
creator Dwulet, Gregory E
Dischinger, Sarah M
McGrath, Michael J
Basalla, Andrew J
Malecha, John J
Noble, Richard D
Gin, Douglas L
description A laminated thin-film composite (TFC) membrane system consisting of an ultrafiltration support, an ordered, nanoporous, polymerized lyotropic liquid crystal (LLC) intermediate layer, and an ultrathin, dense polydopamine top layer was developed for use as a “breathable” chemical-protective garment material. These membranes exhibit a high water vapor transport rate (ca. 500 g m–2 day–1) and excellent rejection of both CEES (a blister agent simulant) and DMMP (a nerve agent simulant) vapors under ambient conditions. The (water:CEES) and (water:DMMP) molar vapor selectivity values of this new composite membrane system were found to be 170 ± 40 and >3400, respectively, which exceed those of any previously reported LLC-based membrane system.
doi_str_mv 10.1021/acs.iecr.9b04738
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title Breathable, Polydopamine-Coated Nanoporous Membranes That Selectively Reject Nerve and Blister Agent Simulant Vapors
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