The swelling behavior of polyelectrolyte multilayers in air of different 
relative humidity and in water

Kügler, R.; Schmitt, J.; Knoll, Wolfgang

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The swelling behavior of polyelectrolyte multilayers in air of different relative humidity and in water

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Kügler, R.
MPI for Polymer Research, Max Planck Society;

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Knoll, Wolfgang
MPI for Polymer Research, Max Planck Society;

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Kügler, R., Schmitt, J., & Knoll, W. (2002). The swelling behavior of polyelectrolyte multilayers in air of different relative humidity and in water. Macromolecular Chemistry and Physics, 203(2), 413-419.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-669F-3

Abstract

Full Paper: The swelling properties of physisorbed polyelectrolyte multilayer self-assemblies with alternating polyion charge in humid air and in aqueous environment were investigated via X-ray and neutron reflectometry as well as optically, using surface plasmon spectroscopy. the soprtion behavior was similar to that found for neutral polymers and was related to an internal screening of the charges of the adjacent layers owing to the high entanglement of the polyelectrolyte chains and the resulting low mobility of the polymer segments. The screening was found to be incomplete only in the top layer, resulting in a net charged surface.