Simulations of layer-by-layer assembly of polyelectrolyte multilayers

Pritesh Patel, Junhwan Jeon, Andrey V. Dobrynin, Patrick T. Mather

Research output: Contribution to conferencePaper

Abstract

Layer-by-layer processing of polyelectrolyte multilayers is a polymer processing technique that enables molecular-level control over the formation of precision coatings. Despite present widespread use, a fundamental understanding of the process remains elusive prompting us to employ molecular dynamics simulations of the process. Multilayer build-up was achieved through sequential adsorption of charged polymers in a layer-bylayer fashion from dilute solutions, the strong electrostatic attraction between oppositely charged polyelectrolytes driving multilayer growth. We find that a charge reversal after each deposition step is critical for steady multilayer growth and a linear increase in polymer mass adsorbed after several deposition steps. Also, substantial intermixing between chains adsorbed during different deposition steps is observed. These results will be summarized, along with a perspective for the future, in our interactive presentation.

Original languageEnglish (US)
Pages104-108
Number of pages5
StatePublished - Dec 1 2005
EventSociety of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005 - Boston, MA, United States
Duration: May 1 2005May 5 2005

Other

OtherSociety of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005
CountryUnited States
CityBoston, MA
Period5/1/055/5/05

Keywords

  • Layer-by-layer
  • Polyelectrolytes multilayers
  • Simulations

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Polymers and Plastics

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    Patel, P., Jeon, J., Dobrynin, A. V., & Mather, P. T. (2005). Simulations of layer-by-layer assembly of polyelectrolyte multilayers. 104-108. Paper presented at Society of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005, Boston, MA, United States.