Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 8, Pages 6820-6824Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b19365
Keywords
mixed matrix composite; multilayers; metal-organic framework; chemical warfare agent; separations; block copolymer; elastomer
Funding
- Joint Science and Technology Office for Chemical Biological Defense (JSTO CBD) [CB3934]
- U.S. Army through ECBC's Individual Laboratory Independent Research program [PE 0601101A 91A]
- Thomas & Kipp Gutshall Professorship at the University of Delaware
- NRC Research Associateship award at ECBC
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This work describes a new strategy for fabricating mixed matrix composites containing layered metal organic framework (MOF)/polymer films as functional barriers for chemical warfare agent protection. Through the use of mechanically robust polymers as the top and bottom encasing layers, a high-MOF-loading, high-performance-core layer can be sandwiched within. We term this multifunctional composite MOFwich. We found that the use of elastomeric encasing layers enabled core layer reformation after breakage, an important feature for composites and membranes alike. The incorporation of MOFs into the core layer led to enhanced removal of chemical warfare agents while simultaneously promoting moisture vapor transport through the composite, showcasing the promise of these composites for protection applications.
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