The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.
Atomic Force Microscopy Studies of Salt Effects on Polyelectrolyte Multilayer Film Morphology
Abstract
The morphology of multilayer films formed from polydiallyldimethylammonium chloride and polystyrene sulfonic acid deposited under a range of salt concentrations (from 10 - 4 to 1.0 M) was investigated using atomic force microscopy (AFM). Ten-bilayer films that were deposited with less than 0.3 M added NaCl were flat and featureless, with similar characteristics to the underlying silica substrate. When formed at and above this salt concentration, a vermiculate morphology was observed. Thickness and roughness measurements were also carried out using the AFM and were found to increase with the concentration of added salt. The evolution of the vermiculate pattern was investigated by AFM studies of each layer that is deposited under high salt concentration (1.0 M NaCl). The first three bilayers were featureless and had a thickness of ∼6 nm/bilayer. A change in morphology was observed by the fourth bilayer, and the average thickness had increased to ∼46 nm/bilayer. These results may be explained in terms of a transition from an extended conformation to a more compact form that polyelectrolytes undergo as a function of the ionic strength of a solution.
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Cites
Fuzzy Nanoassemblies: Toward Layered Polymeric Multicomposites
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Fabrication of Microporous Thin Films from Polyelectrolyte Multilayers
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Formation of Ultrathin Multilayer and Hydrated Gel from Montmorillonite and Linear Polycations
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Proton Concentration Profile in Ultrathin Polyelectrolyte Films
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Cited by
Ghasemian, M., Kazeminava, F., Naseri, A., Mohebzadeh, S., Abbaszadeh, M., Kafil, H. S., & Ahmadian, Z. (2023) · Biomedicine & Pharmacotherapy · doi:10.1016/j.biopha.2023.115328 · Cited by 55
Metadata
- Authors
- McAloney, R. A., Sinyor, M., Dudnik, V., & Goh, M. C.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 2001-09-13
- Volume
- 17
- Issue
- 21
- Pages
- 6655-6663
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2046058245
- Cited by
- 532
- References
- 13
- FWCI
- 12.96
- Type
- journal article
- Language
- en
- Open access
- closed
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