Encyclopedia of Membranes

2016 Edition
| Editors: Enrico Drioli, Lidietta Giorno

Layer-by-Layer (LbL) Method

  • Saren Qi
  • Chuyang Y. Tang
Reference work entry
DOI: https://doi.org/10.1007/978-3-662-44324-8_1487

Layer-by-layer (LbL) method (also known as LbL assembly, electrostatic self-assembly (ESA), or polyelectrolyte multilayer (PEM) technology) is a versatile method to form mutilayers on a solid support. The self-assembly method is driven by the electrostatic force between the precursor materials. Precursor materials to form mutilayers can be chosen from polyelectrolytes, biopolymers, clays, metal complex and their derivates, nanoparticles, dendrimers, and so on (Bertrand et al. 2000). The advantages of this method are the relatively simple process, independence of substrate properties (i.e., size, topology, materials, and so on), and formation of fuzzy structure. Therefore, LbL method has a potential to be applied in various applications including forming multicomposite films, nanoparticle modification, enzyme process, optic development, sensors, membrane for water treatment, fuel cell, and so on.

The basic formation mechanism of a typical LbL process is shown in the schematic drawing in...
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References

  1. Bertrand P, Jonas A, Laschewsky A, Legras R (2000) Ultrathin polymer coatings by complexation of polyelectrolytes at interfaces: suitable materials, structure and properties. Macromol Rapid Commun 21(7):319–348CrossRefGoogle Scholar
  2. Chiarelli PA, Johal MS, Casson JL, Roberts JB, Robinson JM, Wang HL (2001) Controlled fabrication of polyelectrolyte multilayer thin films using spin-assembly. Adv Mater 13(15):1167CrossRefGoogle Scholar
  3. Deng HY, Xu YY, Zhu BK, Wei XZ, Liu F, Cui ZY (2008) Polyelectrolyte membranes prepared by dynamic self-assembly of poly (4-styrenesulfonic acid-co-maleic acid) sodium salt (PSSMA) for nanofiltration (I). J Membr Sci 323(1):125–133CrossRefGoogle Scholar
  4. Schlenoff JB, Dubas ST, Farhat T (2000) Sprayed polyelectrolyte multilayers. Langmuir 16(26):9968–9969CrossRefGoogle Scholar
  5. Zhang P, Qian J, Yang Y, An Q, Liu X, Gui Z (2008) Polyelectrolyte layer-by-layer self-assembly enhanced by electric field and their multilayer membranes for separating isopropanol-water mixtures. J Membr Sci 320(1–2):73–77CrossRefGoogle Scholar
  6. Zhang G, Dai L, Ji S (2011) Dynamic pressure-driven covalent assembly of inner skin hollow fiber multilayer membrane. AIChE J 57(10):2746–2754CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.Singapore Membrane Technology CentreNanyang Technological UniversitySingaporeSingapore
  2. 2.Department of Civil EngineeringThe University of Hong KongHong KongHong Kong SAR