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Lyu X, Peterson AM. The Princess and the Pea Effect: Influence of the first layer on polyelectrolyte multilayer assembly and properties. J Colloid Interface Sci. 2017;502:165-171doi: 10.1016/j.jcis.2017.04.091.
Lyu, X., & Peterson, A. M. (2017). The Princess and the Pea Effect: Influence of the first layer on polyelectrolyte multilayer assembly and properties. Journal of colloid and interface science, 502165-171. https://doi.org/10.1016/j.jcis.2017.04.091
Lyu, Xuejian, and Peterson, Amy M. "The Princess and the Pea Effect: Influence of the first layer on polyelectrolyte multilayer assembly and properties." Journal of colloid and interface science vol. 502 (2017): 165-171. doi: https://doi.org/10.1016/j.jcis.2017.04.091
Lyu X, Peterson AM. The Princess and the Pea Effect: Influence of the first layer on polyelectrolyte multilayer assembly and properties. J Colloid Interface Sci. 2017 Sep 15;502:165-171. doi: 10.1016/j.jcis.2017.04.091. Epub 2017 Apr 29. PMID: 28482189.
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J Colloid Interface Sci. 2017 Sep 15;502:165-171. doi: 10.1016/j.jcis.2017.04.091. Epub 2017 Apr 29.

The Princess and the Pea Effect: Influence of the first layer on polyelectrolyte multilayer assembly and properties.

Journal of colloid and interface science

Xuejian Lyu, Amy M Peterson

Affiliations

  1. Department of Mechanical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, United States.
  2. Department of Mechanical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, United States; Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, United States. Electronic address: [email protected].

PMID: 28482189 DOI: 10.1016/j.jcis.2017.04.091

Abstract

In many applications of polyelectrolyte multilayers (PEMs), a base polycation layer is adsorbed to promote adhesion of the PEM to the substrate. In this report, the effect of the first polyelectrolyte adsorbed in a PEM was investigated by assembling PEMs with first layer polycations of different chemistries and molecular weights. In this study, quartz crystal microbalance with dissipation monitoring (QCM-D) was used to monitor the PEM assembly process. First layer choice affects the total mass accumulation of the PEM as well as the stoichiometry of the PEM, although linear growth was observed in all cases. PEM thickness was also affected by first layer choice, although not consistent with changes in mass. Combined with the stoichiometry results, these findings indicate that the structure of a PEM is fundamentally different depending on first layer chemistry and molecular weight. PEM topography is also affected by first layer choice. Selection of appropriate first layer material is therefore an important consideration in the design of a PEM, and changing first layer material may be a facile way to tailor the structure and properties of PEMs.

Copyright © 2017 Elsevier Inc. All rights reserved.

Keywords: Atomic force microscopy; Ellipsometry; Polyelectrolyte multilayer; Polymer coatings; Quartz crystal microbalance; Surface chemistry

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