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    Controlled Stripping of Polyelectrolyte Multilayers by Quaternary Ammonium Surfactants

    Year: 2009

    Journal: Macromolecular Rapid Communications, Volume 30 Issue 20, Pages 1756 - 1761, 20100827

    Authors: Ramos J.J.I. 1, Llarena I. 1, Fernández L. 3, Moya S.E. 1 *, Donath E. 2

    Last authors: Edwin Donath

    Organizations: 1 CIC biomaGUNE, Paseo Miramón 182 Edificio Empresarial C, 20009 San Sebastian, Gipuzkoa, Spain 2 Institute of Biophysics and Medical Physics, University of Leipzig, Leipzig, Germany 3IKERLAN, CIC MICROGUNE, Paseo J.M Arizmendiarrieta 2, 20500 Arrasate-Mondragón, Gipuzkoa, Spain

    Country: Spain

    The quartz crystal microbalance with dissipation technique (QCM-D) and atomic force microscopy (AFM) have been employed to study the interaction of N-tetradecyl trimethyl ammonium bromide (TdTmAB) with polyelectrolyte multilayers containing poly(sodium 4-styrene sulfonate) (PSS) as the polyanion and either poly(allylamine hydrochloride) (PAH) or poly(diallyl dimethyl ammonium chloride) (PDADMAC) as the polycations. The multilayers were exposed to aqueous solutions of TdTmAB. This resulted in a selective removal of PDADMAC PSS layers while layers with PAH as polycation remained stable. It is suggested that PDADMAC/PSS multilayers can be employed as strippable protecting layers.