Polymer, Volume 54, Issue 18, 16 August 2013, Pages 4729–4761
Energy-efficient polymeric gas separation membranes for a sustainable future: A review
David F. Sanders (a), Zachary P. Smith (a),
Ruilan Guo (b), Lloyd M. Robeson (c), James E. McGrath (d), Donald R. Paul (a),
Benny D. Freeman (a)
a University of Texas at Austin, Center for Energy and Environmental Resources,
Department of Chemical Engineering, and Texas Materials Institute, 10100 Burnet
Road, Building 133, Austin, TX 78758, USA
b University of Notre Dame, Department of Chemical and Biomolecular
Engineering, Notre Dame, IN 46556, USA
c Lehigh University, Department of Materials Science and Engineering,
Bethlehem, PA 18015, USA
d Virginia Polytechnic Institute and State University, Macromolecules and
Interfaces Institute and Department of Chemistry, Blacksburg, VA 24061, USA
Abstract
Over the past three decades, polymeric gas
separation membranes have become widely used for a variety of industrial gas
separations applications. This review presents the fundamental scientific
principles underpinning the operation of polymers for gas separations,
including the solution-diffusion model and various structure/property
relations, describes membrane fabrication technology, describes polymers
believed to be used commercially for gas separations, and discusses some
challenges associated with membrane materials development.
A description of new classes of polymers being
considered for gas separations, largely to overcome existing challenges or
access applications that are not yet practiced commercially, is also provided.
Some classes of polymers discussed in this review that have been the focus of
much recent work include thermally rearranged (TR) polymers, polymers of
intrinsic microporosity (PIMs), room-temperature ionic liquids (RTILs),
perfluoropolymers, and high-performance polyimides.
Free Full Text Source: http://www.sciencedirect.com/science/article/pii/S0032386113005399
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