作者: Fatima Al-Ali , Christophe Déjugnat , Guita Etemad-Moghadam , Isabelle Rico-Lattes
DOI: 10.1016/J.JCIS.2004.01.080
关键词: Adsorption 、 Langmuir 、 Metal ions in aqueous solution 、 Pulmonary surfactant 、 Metal 、 Chemistry 、 Ionic strength 、 Amphiphile 、 Monolayer 、 Inorganic chemistry
摘要: Monolayers of amphiphilic (alpha-amino)phosphonocarboxylic and (alpha-amino)phosphonic acids have been formed by adsorption at the air/water interface. The influence both ionic strength pH subphase on stability compactness monolayers studied. Langmuir films are enhanced introduction metallic ions such as Ca(2+) or Mg(2+) in subphases. These effects more pronounced with Ca(2+). metal can form dimeric complexes phosphorus moieties surfactant polar heads therefore bring amphiphiles closer. For less hydrophobic derivative, complexation is required to ensure formation a stable monomolecular film. phosphonocarboxylic phosphonic compounds, models proposed represent phenomenon