Dynamic properties of mixed nanoparticle/surfactant adsorption layers (Articolo in rivista)

Type
Label
  • Dynamic properties of mixed nanoparticle/surfactant adsorption layers (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/c3sm27304k (literal)
Alternative label
  • Yazhgur P.A.; Noskov B.A.; Liggieri L.; Lin S.-Y.; Loglio G.; Mille, R.; Ravera F. (2013)
    Dynamic properties of mixed nanoparticle/surfactant adsorption layers
    in Soft matter (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Yazhgur P.A.; Noskov B.A.; Liggieri L.; Lin S.-Y.; Loglio G.; Mille, R.; Ravera F. (literal)
Pagina inizio
  • 3305 (literal)
Pagina fine
  • 3314 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pubs.rsc.org/en/Content/ArticleLanding/2013/SM/c3sm27304k#!divAbstract (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 9 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 12 (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1,2 : Department of Colloid Chemistry, St. Petersburg State University, Universitetsky pr. 26, 198504, St. Petersburg, Russian Federation / 3,7 : CNR-Institute for Energetics, Interphases-Genoa Department, via De Marini 6, 16149, Genoa, Italy / 4 : National Taiwan University of Science and Technology, Chemical Engineering Department, 43 Keelung Road, Section 4, Taipei 106, Taiwan / 5 : Dipartimento di Chimica Organica, Universita Degli Studi di Firenze, Via della Lastruccia 13, 50019 Sesto Fiorentino Firenze, Italy / 6 : MPI für Kolloid und Grenzflächenforschung, Wissenschaftspark Golm, D-14424, Golm, Germany (literal)
Titolo
  • Dynamic properties of mixed nanoparticle/surfactant adsorption layers (literal)
Abstract
  • The adsorption films of silica nanoparticles modified by a cationic surfactant (cetyltrimethylammonium bromide, CTAB) at the air-water interface were investigated by the dilational surface rheology and optical methods. Special attention was paid to the slow changes of surface properties with the surface age. The surface tension and dynamic dilational surface elasticity were measured as a function of CTAB concentration. The whole surfactant concentration range can be divided into four regions characterized by different surface rheological behavior. Depending on the CTAB concentration, the surface elasticity close to the equilibrium may reach extremely high values ([similar]1000 mN m-1) and strongly depends on the applied surface strain. This occurs at surfactant concentrations below the region where the dispersion becomes turbid, indicating particle aggregation in the bulk. The Brewster angle microscopy and ellipsometry show that the adsorption layer becomes fragile and inhomogeneous in this region. (literal)
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