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Separation Science and Technology Volume 47, 2012 - Issue 2: Ionic Liquids: Challenging the Frontiers of Separations Processes
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Original Articles

Design of Functionalized Room-Temperature Ionic Liquid-Based Materials for CO2 Separations and Selective Blocking of Hazardous Chemical Vapors

A. L. Miller II Department of Chemical & Biological Engineering, University of Colorado, Boulder, CO, USA; Department of Chemistry & Biochemistry, University of Colorado, Boulder, CO, USA
,
T. K. Carlisle Department of Chemical & Biological Engineering, University of Colorado, Boulder, CO, USA
,
A. L. LaFrate Department of Chemical & Biological Engineering, University of Colorado, Boulder, CO, USA; Department of Chemistry & Biochemistry, University of Colorado, Boulder, CO, USA
,
B. A. Voss Department of Chemical & Biological Engineering, University of Colorado, Boulder, CO, USA
,
J. E. Bara Department of Chemical & Biological Engineering, University of Colorado, Boulder, CO, USA; Department of Chemical & Biological Engineering, University of Alabama, Tuscaloosa, AL, USA
,
Y. C. Hudiono Department of Chemical & Biological Engineering, University of Colorado, Boulder, CO, USA
,
B. R. Wiesenauer Department of Chemistry & Biochemistry, University of Colorado, Boulder, CO, USA
,
D. L. Gin Department of Chemical & Biological Engineering, University of Colorado, Boulder, CO, USA; Department of Chemistry & Biochemistry, University of Colorado, Boulder, CO, USACorrespondence[email protected]
&
R. D. Noble Department of Chemical & Biological Engineering, University of Colorado, Boulder, CO, USA
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Pages 169-177 | Received 14 Jun 2011, Accepted 02 Oct 2011, Published online: 03 Feb 2012
 
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Abstract

The design and synthesis of several new types of functionalized room-temperature ionic liquids (RTILs), ionic polymers based on RTILs (i.e., poly(RTIL)s), poly(RTIL)-RTIL solid-liquid composites, and gelled RTIL systems for gas separations and reactive vapor transport applications are presented. The design concepts behind these new RTIL materials are discussed in the context of first, CO2 removal from CH4 and N2 for natural gas purification and greenhouse gas reduction, respectively; and second selective blocking or sorption of chemical warfare agent simulant and toxic industrial compound vapors from water vapor for protection applications. The role of the RTIL components and their unique properties in these two separations areas will be highlighted.

ACKNOWLEDGEMENTS

Funding for this work from the U.S. Defense Threat Reduction Agency (grant: HDTRA1-08-1-0028) and the U.S. Army Research Office (grant: AB07CBT010) is gratefully acknowledged. T. K. C. and B. A. V. also thank the U.S. Department of Education for GAANN Fellowships in partial support of their work described herein.

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