Roles of Chain Conformation and Interpenetration in the Growth of a Polyelectrolyte Multilayer

• DOI: 10.1021/jp077286f
• Publication Date: 2008-03-14T09:00:30Z
• Authors: Guangming Liu; Sirui Zou; Li Fu; Guangzhao Zhang
• Keywords: Quartz Crystal Microbalance; Conformational change; Deposition

In the present study, we have investigated growth of a multilayer formed by poly(sodium 4-styrene sulfonate) (PSSS) and poly(diallyldimethylammonium chloride) (PDDA) at different salt concentrations use quartz crystal microbalance with dissipation (QCM-D). The frequency change (Deltaf) demonstrates that exponential mode gradually becomes dominant as NaCl concentration (C(NaCl)) increases. On other hand, (DeltaD) reveals deposition is dominated chain conformation C(NaCl) < 1.0 M, where characteristic parameter agrees well results fit Debye length. At > or = not determined but interpenetration.