X-ray photoelectron spectroscopy analysis of mono alkyl phosphate-oriented states in leather surface / K. Sato in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 84, N° 3 (05-06/2000)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 84, N° 3 (05-06/2000) . - p. 138-143 Titre : X-ray photoelectron spectroscopy analysis of mono alkyl phosphate-oriented states in leather surface Type de document : texte imprimé Auteurs : K. Sato, Auteur ; Y. Sato, Auteur Année de publication : 2000 Article en page(s) : p. 138-143 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuir Hydrophobie Phosphate de monoalkyle Spectroscopie des rayons X Sulfate de monoalkyle Surfaces -- Analyse Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Leather fatliquored with monoakyl phosphate (MAP) possessed an excellent hydrophobicity. In order to elucidate the mechanism of the hydrophobicity due to MAP fatliquoring the binding behaviour and orientation of the MAP molecule (with different alkyl chain lengths) on the surface of chrome leather were examined by X-ray photoelectron spectroscopy (XPS). Differences in the behaviour of MAP and mono alkyl sulphonate (MAS) were also studied by XPS. The interactions of MAP or MAS with the chrome leather are different. MAP combined with the chrome leather with a co-ordination bond and MAS combined chiefly with an ionic bond. The binding strength of MAP varied with the carbon number. The MAP molecule stayed on the fibre surface and a monolayer of MAP molecules was formed. The alkyl chain with C16 or above showed a high condensation force between the side planes and formed a condensed membrane with high density. It can be considered that the hydrophobicity results from the formation of a monolayer of MAP molecules into a condensed membrane. Note de contenu : - EXPERIMENTAL METHODS : Materials - XPS measurement - Angle dependence - EXPERIMENTAL RESULT AND CONSIDERATION : Interaction between MAP and chrome leather - The orientation of MAP in the leather surface - Table 1 : The composition of alkyl phosphate products determined by gas-chromatography En ligne : https://drive.google.com/file/d/1mySolBUcmg7Z0vfMPjmfxesl1HlWtMi9/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41236 [article]

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