Encyclopedia of Membranes

2016 Edition
| Editors: Enrico Drioli, Lidietta Giorno

Liquid Crystal Polymer Membranes

  • P. C. van H. Kuringen
  • A. P. H. J. Schenning
  • D. J. Broer
Reference work entry
DOI: https://doi.org/10.1007/978-3-662-44324-8_1797

Liquid crystals (LCs) combine properties of both liquids and crystals and can be organized in a variety of nanostructured polymer films with a monolithic structure. Therefore, polymer-based LCs are ultimately suited as membrane with an accurately controlled nanoporosity. Nanoporous membranes that have a large surface area to volume ratio are of great current interest for their potential application in filtration, separation, ion conductivity, drug delivery, and catalysis. The small pore size in these materials (less than 1 nm) makes discrimination between molecules and ions based on size and shape possible.

LCs can self-assemble in a variety of phases that have orientation order and, in some cases, positional order. For the construction of nanoporous membranes, various phases have been used. Well-known examples are hexagonal or columnar, lamellar or smectic, and cubic phases (Fig. 1).
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References

  1. Gin DL, Lu X, Nemade PR, Pecinovsky CS, Xu Y, Zhou M (2006) Recent advances in the design of polymerizable lyotropic liquid-crystal assemblies for heterogeneous catalysis and selective separations. Adv Funct Mater 16:865–878CrossRefGoogle Scholar
  2. Henmi M, Nakatsuji K, Ichikawa T, Tomioka H, Sakamoto T, Yosho M, Kato T (2012) Self-organized liquid-crystalline nanostructured membranes for water treatment: selective permeation of ions. Adv Mater 24:2238–2241CrossRefGoogle Scholar
  3. Kato T (2010) From nanostructured liquid crystals to polymer-based electrolytes. Angew Chem Int Ed 49:7847–7848CrossRefGoogle Scholar
  4. Schenning APHJ, Gonzalez-Lemus YC, Shishmanova IK, Broer DJ (2011) Nanoporous membranes based on liquid crystalline polymers. Liq Cryst 38(11–12):1627–1639CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • P. C. van H. Kuringen
    • 1
  • A. P. H. J. Schenning
    • 1
  • D. J. Broer
    • 1
  1. 1.Department of Chemical Engineering and Chemistry, Group Functional Organic Materials and Devices (SFD)Eindhoven University of TechnologyEindhovenThe Netherlands