title: Accelerated exchange in polyelectrolyte multilayers by "catalytic" polyvalent ion pairing.
abstract: Self-exchange of isotopically labeled polycarboxylic acid within a polyelectrolyte multilayer proceeds to completion and is reversible. Similar exchange with poly(styrene sulfonate), which forms nonlabile polyelectrolyte complexes, is slow and irreversible but is facilitated by polyvalent ion pairing interventions of a third polyelectrolyte. This is an example of accelerated kinetics in "sticky" synthetic systems associated by nonspecific polyvalent interactions.
authors.forename: Houssam W
authors.initials: HW
authors.lastname: Jomaa
authors.forename: Joseph B
authors.initials: JB
authors.lastname: Schlenoff
mesh_terms: D002384:Catalysis; D004247:DNA / Q000737:chemistry; D004573:Electrolytes / Q000737:chemistry*; D007477:Ions / Q000737:chemistry; D015394:Molecular Structure; D013057:Spectrum Analysis
chemical_list: D004573:Electrolytes; D007477:Ions; D004247:DNA