Suppressing the Hofmeister Anion Effect by Thermal Annealing of Thin-Film Multilayers Made of Weak Polyelectrolytes
Tin Klačić, Klemen Bohinc, Davor Kovačević
Abstract
. Furthermore, we found that the hydrophobicity of the PAH/PAA multilayer also follows the described trend when a polycation is the terminating layer. However, the heating of PAH/PAA multilayers to 60 °C during the LbL assembly suppressed the influence of background anions on the multilayer formation and properties. On the basis of the obtained results, it could be concluded that thermal annealing induces changes at the polymer-air interface in the sense of reorientation and migration of polymer chains.
Topics & Concepts
PolyelectrolyteAllylaminePolymerAcrylic acidLayer by layerChemistryChemical engineeringEllipsometryThin filmPolymer chemistryAnnealing (glass)Hofmeister seriesMaterials scienceSalt (chemistry)MonomerOrganic chemistryNanotechnologyComposite materialEngineeringPolymer Surface Interaction StudiesAnalytical Chemistry and SensorsMolecular Junctions and Nanostructures