Properties and structure of interfacial layers formed by hydrophilic silica dispersions and palmitic acid (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Properties and structure of interfacial layers formed by hydrophilic silica dispersions and palmitic acid (Articolo in rivista) (literal)

Anno

• 2012-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1039/C1CP22552A (literal)

Alternative label

• Santini E.; Guzmán E.; Ravera F.; Ferrari M.; Liggieri L. (2012)
  Properties and structure of interfacial layers formed by hydrophilic silica dispersions and palmitic acid
  in PCCP. Physical chemistry chemical physics (Print); Royal Society of Chemistry, Cambridge (Regno Unito)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Santini E.; Guzmán E.; Ravera F.; Ferrari M.; Liggieri L. (literal)

Pagina inizio

• 607 (literal)

Pagina fine

• 615 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://pubs.rsc.org/en/Content/ArticleLanding/2012/CP/C1CP22552A#!divAbstract (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 14 (literal)

Rivista

• PCCP. Physical chemistry chemical physics (Rivista)

Note

• ISI Web of Science (WOS) (literal)
• Scopu (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• CNR, Istituto per l'Energetica e le Interfasi, Genova 16149, Italy (literal)

Titolo

• Properties and structure of interfacial layers formed by hydrophilic silica dispersions and palmitic acid (literal)

Abstract

• The properties and structure of different types of interfacial layers obtained from aqueous dispersions of nanometric silica and palmitic acid (PA) have been studied and characterized by different diagnostics and measurements. The investigations concern PA monolayers spread on the silica dispersions, dispersions in contact with PA solutions in oil and silica dispersions containing PA, aiming at elucidating the role of the PA interaction with the particles and investigating the surface-activity of the originated silica-PA complexes. Drop shape tensiometry was utilized to measure the dynamic surface and interfacial tension while a Langmuir trough apparatus was used to obtain compression isotherms of the spread PA layers and to measure the dilational viscoelasticity according to the oscillating barrier method. Brewster angle microscopy and ellipsometry were utilized to investigate the lateral and vertical structure of the interfacial layers. From this multifold approach emerges a complex picture of the features of these interfacial layers that can be rationalized on the basis of the adsorption of PA on the particle surface. The results evidence a threshold in PA adsorption above which particles change from hydrophilic to partially hydrophobic, promoting their incorporation into the interfacial layer. (literal)

Editore

• Royal Society of Chemistry (Editore)

Prodotto di

• Institute of Condensed Matter Chemistry and Energy Technologies (ICMATE) (Istituto)
• Soft matter per l'ottimizzazione di combustibili e di processi di generazione energetica sostenibili (ET.P01.005.001) (Modulo)
• Interazione particelle-interfacce liquide ed applicazioni nelle nanotecnologie (ET.P01.005.002) (Modulo)

Autore CNR

• FRANCESCA RAVERA (Unità di personale interno)
• MICHELE FERRARI (Persona)
• EDUARDO GUZMAN SOLIS (Persona)
• LIBERO LIGGIERI (Unità di personale interno)
• EVA SANTINI (Persona)

Insieme di parole chiave

• Keywords of "Properties and structure of interfacial layers formed by hydrophilic silica dispersions and palmitic acid" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• MICHELE FERRARI (Persona)
• FRANCESCA RAVERA (Unità di personale interno)
• LIBERO LIGGIERI (Unità di personale interno)
• EDUARDO GUZMAN SOLIS (Persona)
• EVA SANTINI (Persona)

Prodotto

• Institute of Condensed Matter Chemistry and Energy Technologies (ICMATE) (Istituto)
• Interazione particelle-interfacce liquide ed applicazioni nelle nanotecnologie (ET.P01.005.002) (Modulo)
• Soft matter per l'ottimizzazione di combustibili e di processi di generazione energetica sostenibili (ET.P01.005.001) (Modulo)

Editore di

• Royal Society of Chemistry (Editore)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• PCCP. Physical chemistry chemical physics (Rivista)

Insieme di parole chiave di

• Keywords of "Properties and structure of interfacial layers formed by hydrophilic silica dispersions and palmitic acid" (Insieme di parole chiave)