Deutsch
 
Benutzerhandbuch Datenschutzhinweis Impressum Kontakt
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

Interaction Forces between Pegylated Star-Shaped Polymers at Mica Surfaces

MPG-Autoren
/persons/resource/persons136271

Cheng,  Hsiu-Wei
Interaction Forces and Functional Materials, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;
Institut Fír Physikalische Chemie, TU Bergakademie Freiberg, Leipziger Straße 29, Freiberg, Germany;

/persons/resource/persons125445

Valtiner,  Markus
Interaction Forces and Functional Materials, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;
Institute for physical chemistry II, Technische Universität Bergakademie Freiberg, Leipzigerstraße 29, 09599 Freiberg, Germany ;

Externe Ressourcen
Es sind keine Externen Ressourcen verfügbar
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Banquy, X., Le Dévédec, F., Cheng, H.-W., Faivre, J., Zhu, J. X. X., & Valtiner, M. (2017). Interaction Forces between Pegylated Star-Shaped Polymers at Mica Surfaces. ACS Applied Materials and Interfaces, 9(33), 28027-28033. doi:10.1021/acsami.7b06922.


Zitierlink: http://hdl.handle.net/21.11116/0000-0001-60E8-D
Zusammenfassung
We present a study focused on characterizing the interaction forces between mica surfaces across solutions containing star-shaped polymers with cationic ends. Using the surface forces apparatus, we show that the interaction forces in pure water between surfaces covered with the polymers can be adequately described by the dendronized brush model. In that framework, our experimental data suggest that the number of branches adsorbed at the surface decreases as the: concentration of polymer in the adsorbing solution Increases. The onset of interaction was also shown to increase:with the concentration of polymer in solution up to distances much larger than the contour, length of the polymer, suggesting that the nanostructure of the polymer film is significantly different from that of a monolayer. High compression of the polymer film adsorbed at low polymer concentration revealed the appearance of a highly structured hydration layer underneath the polymer layer. These restilts support that charged polymer chains do not necessarily come into close contact with the surface even if strong electrostatic interaction is present. Altogether, our results provide a comprehensive understanding of the interfacial behavior of star-shaped polymers and reveal the unexpected role of hydration water in the control of the polymer conformation.