The interaction of water with the surface of polyphenylacetylene (PPA) films is dependent on the preparation ana casting procedures. Films with an oxygen-free surface were obtained. Molecular adsorption of H2O is indicated to be the major phenomenon by XPS. On annealing up to almost-equal-to 250-degrees-C partial loss of adsorbed water occurs. The thickness of the reacted surface layer is estimated to be almost-equal-to 6.0 angstrom when the PPA film is exposed to water vapour at pressure p almost-equal-to 760 Torr.
H2O surface interaction of oxygen free polyphenylacetylene films investigated by XPS / G., Polzonetti; Russo, Maria Vittoria. - In: JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA. - ISSN 0368-2048. - 60:(1992), pp. R7-R14. [10.1016/0368-2048(92)80035-7]
H2O surface interaction of oxygen free polyphenylacetylene films investigated by XPS
RUSSO, Maria Vittoria
1992
Abstract
The interaction of water with the surface of polyphenylacetylene (PPA) films is dependent on the preparation ana casting procedures. Films with an oxygen-free surface were obtained. Molecular adsorption of H2O is indicated to be the major phenomenon by XPS. On annealing up to almost-equal-to 250-degrees-C partial loss of adsorbed water occurs. The thickness of the reacted surface layer is estimated to be almost-equal-to 6.0 angstrom when the PPA film is exposed to water vapour at pressure p almost-equal-to 760 Torr.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
