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Adsorbed Layer Structure of a Weak Polyelectrolyte Studied by Colloidal Probe Microscopy and QCM-D as a Function of pH and Ionic Strength

Notley, Shannon; Biggs, Simon; Craig, Vincent; Wagberg, Lars


The adsorbed layer structure of a weak polyelectrolyte poly(2- vinylpyridine), on silica and mica, has been studied using colloidal probe microscopy (CPM) and the quartz crystal microbalance (QCM-D). The adsorbed layer structure was found to be highly dependent on both the solution conditions from which it was adsorbed and the molecular weight. Conditions were altered to favour both flat adsorbed layers and the development of significant steric layers. The structural reconformation of the large...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
Source: Physical Chemistry Chemical Physics
DOI: 10.1039/b401376j


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