Critical adsorption of periodic and random polyampholytes onto charged surfaces
- How different are the properties of critical adsorption of polyampholytes and polyelectrolytes onto charged surfaces? How important are the details of polyampholyte charge distribution on the onset of critical adsorption transition? What are the scaling relations governing the dependence of critical surface charge density on salt concentration in the surrounding solution? Here, we employ Metropolis Monte Carlo simulations and uncover the scaling relations for critical adsorption for quenched periodic and random charge distributions along the polyampholyte chains. We also evaluate and discuss the dependence of the adsorbed layer width on solution salinity and details of the charge distribution. We contrast our findings to the known results for polyelectrolyte adsorption onto oppositely charged surfaces, in particular, their dependence on electrolyte concentration.
Verfasserangaben: | Daniel L. Z. Caetano, Sidney J. de Carvalho, Ralf MetzlerORCiDGND, Andrey G. CherstvyORCiD |
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DOI: | https://doi.org/10.1039/c7cp04040g |
ISSN: | 1463-9076 |
ISSN: | 1463-9084 |
Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/28825753 |
Titel des übergeordneten Werks (Englisch): | Physical chemistry, chemical physics : a journal of European Chemical Societies |
Verlag: | Royal Society of Chemistry |
Verlagsort: | Cambridge |
Publikationstyp: | Wissenschaftlicher Artikel |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2017 |
Erscheinungsjahr: | 2017 |
Datum der Freischaltung: | 20.04.2020 |
Band: | 19 |
Seitenanzahl: | 17 |
Erste Seite: | 23397 |
Letzte Seite: | 23413 |
Fördernde Institution: | Sao Paulo Research Foundation (FAPESP) [2013/13151-7] |
Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
Peer Review: | Referiert |