Where Polyelectrolyte Multilayers and Polyelectrolyte Complexes Meet

• DOI: 10.1021/ma061617p
• Publication Date: 2006-12-07T13:03:25Z
• Authors: Svetlana A. Sukhi...; Eugenia Kharlampieva; Vladimir Izumrudov
• Keywords: Carboxylate; Deposition

We summarize existing knowledge and present some new results on the relationship between polyelectrolyte multilayer (PEM) growth phase behavior of complexes (PECs) in solution. Detailed understanding competition surface solution as applied to PEMs requires selective labeling polymers and/or application techniques that allow chemically specific monitoring film components, such in-situ ATR−FTIR spectroscopy. The trends observed with multilayers directly follow from properties PECs Effects a number parameters, type interacting chains, ratio their lengths, ionic strength pH deposition solutions, likelihood stability or erosion are considered. Polycations high density primary amino groups polyanions SO3- SO4- show strongest interpolyelectrolyte binding, resulting inhibited chain exchange within PEMs. With weakly bound pairspolycations containing quaternary ammonium carboxylate polyanionswater-soluble easily formed, often For latter case, we report full diagram polycation/polyanion/NaCl aqueous mixtures how can be used tune at surfaces. In addition, also controls response Better relationships allows rational prediction control wide range weak permanently charged polyelectrolytes