We have found diffusion of polyelectrolyte chains within multilayer films to be highly anisotropic, with the preferential chain motion parallel to the substrate. The degree of anisotropy was quantified by a combination of fluorescence recovery after photobleaching and neutron reflectometry, probing chain diffusion in directions parallel and perpendicular to the substrate, respectively. Chain mobility was controlled by ionic strength of annealing solutions and steric hindrance to ionic pairing of interacting polyelectrolytes.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3454581 | PMC |
| http://dx.doi.org/10.1021/mz200075x | DOI Listing |
Publication Analysis
Top Keywords
diffusion polyelectrolyte
8
polyelectrolyte chains
8
chains multilayer
8
multilayer films
8
anisotropic diffusion
4
films diffusion
4
films highly
4
highly anisotropic
4
anisotropic preferential
4
preferential chain
4
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!