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Chemical threat responsive carbon nanotube membranes

Herbert, Myles B. and Belger, Christian and Weis, Jonathan G. and Swager, Timothy M. (2015) Chemical threat responsive carbon nanotube membranes. In: 250th American Chemical Society National Meeting & Exposition, 16-20 August 2015, Boston, MA.

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Current research efforts are aimed at developing hybrid polymer-vertically aligned carbon nanotube (CNT) membranes that are breathable in their native state but become blocked upon exposure to low levels of chem. warfare agents (CWA). Our approach utilizes polymers formed by ring opening metathesis polymn. (ROMP) that have a highly non-planar structure in their neutral resting state to retain the high moisture vapor transport rate of the CNT membranes. Upon reacting with CWAs, these polymers can ionize and planarize, assuming a cationic, arom. structure. This π-stacking drives a gel collapse that will block the CNT pores. These types of polymers will be grafted from the membrane using surface initiated ROMP (SI-ROMP) on norbornene-substituted surfaces. In this approach, the surface will be functionalized with a reactive ruthenium catalyst, and subsequent addn. of norbornene-based monomers will result in a functional polymer grown from the membrane surface. It is envisioned that this hybrid material will be useful to protect soldiers from chem. and biol. threats.

Item Type:Conference or Workshop Item (Paper)
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Swager, Timothy M.0000-0002-3577-0510
Additional Information:© 2015 American Chemical Society.
Record Number:CaltechAUTHORS:20150925-142604286
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:60539
Deposited By: Tony Diaz
Deposited On:25 Sep 2015 21:31
Last Modified:07 Feb 2020 19:44

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