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Controlled Stripping of Polyelectrolyte Multilayers by Quaternary Ammonium Surfactants

✍ Scribed by Jagoba Jon Iturri Ramos; Irantzu Llarena; Luis Fernández; Sergio Enrique Moya; Edwin Donath

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
479 KB
Volume
30
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

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.

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