Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 58, Issue 47, Pages 21890-21893Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.9b04738
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Funding
- Membrane Applied Science and Technology Center [16-3]
- (Defense Threat Reduction Agency)
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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.
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