Advertisement

If you have an ACS member number, please enter it here so we can link this account to your membership. (optional)

ACS values your privacy. By submitting your information, you are gaining access to C&EN and subscribing to our weekly newsletter. We use the information you provide to make your reading experience better, and we will never sell your data to third party members.

ENJOY UNLIMITED ACCES TO C&EN

Materials

'Breathable' rubber could up protection

December 4, 2006 | A version of this story appeared in Volume 84, Issue 49

A new material that blocks toxic substances—including a simulated mustard agent—but transmits water vapor could be used to make improved protective garments for chemical workers, military personnel, and others who might encounter noxious compounds (Adv. Mater., DOI: 10.1002/adma.200601156). Butyl rubber is generally used for such garments, but its lack of "breathability" can at best cause discomfort and at worst cause heat stroke or even death in adverse climates. Brian J. Elliott of TDA Research, Wheat Ridge, Colo.; Douglas L. Gin of the University of Colorado, Boulder; and coworkers have adapted butyl rubber to make it more user-friendly. They copolymerize butyl rubber with a liquid-crystal monomer (shown), which results in a 3-D network of water-filled channels threaded through the composite. The hydrophilic channels allow water vapor to pass through the material but block hydrophobic compounds such as chemical warfare agents.

Article:

This article has been sent to the following recipient:

0 /1 FREE ARTICLES LEFT THIS MONTH Remaining
Chemistry matters. Join us to get the news you need.