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    Templation, Water Content, and Zeta Potential of Polyelectrolyte Nanoassemblies: a Comparison Between Polyelectrolyte Multilayers and Brushes

    Year: 2012

    Journal: Macromol Rapid Commun. 2012 Jun 27;33(12):1022-35, 20120922

    Authors: Sergio Enrique Moya1,2,*, Jagoba Jon Iturri Ramos1,†, Irantzu Llarena1

    Last authors: Irantzu Llarena

    Organizations: 1 CIC biomaGUNE, Paseo Miramón 182 C, 20009 San Sebastian, Gipuzkoa, Spain 2 MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China †Max Planck Institüt für Polymerforschung, Ackermannweg 10 D-55128 Mainz, Germany

    Country: Spain, China, Germany

    This feature article deals with the self assembly and physical chemistry of polyelectrolytes: multilayers and brushes. The article highlights the interesting behavior of polyelectrolytes in nanoscale assemblies, giving more insight into the complexity of the formation of the assemblies. The water content of multilayers and brushes is studied during the assembly and in different ionic strengths. Similarities are found in the behavior of the brushes and multilayers with ionic strength, with regard to changes in the thickness and the water content. An invariance of the zeta potential with ionic strength is also observed for both systems, which can be explained as a result of conformational changes of the polymer chains. Finally, the combination of brushes and multilayers for surface modification is presented.