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INVESTIGATIONS OF THE INTERFACE BETWEEN MAGNESIUM AND POLYETHYLENETEREPHTHALATE BY X-RAY PHOTOELECTRON-SPECTROSCOPY

TitleINVESTIGATIONS OF THE INTERFACE BETWEEN MAGNESIUM AND POLYETHYLENETEREPHTHALATE BY X-RAY PHOTOELECTRON-SPECTROSCOPY
Publication TypeJournal Article
Year of Publication1995
AuthorsWong, PC, Li, YS, Mitchell, KAR
JournalApplied Surface Science
Volume84
Pagination245-252
Date PublishedMar
Type of ArticleArticle
ISBN Number0169-4332
Keywordsaluminum, CHEMISTRY, PLASMA, POLYMER INTERFACES, XPS
Abstract

The interfacial chemistry between in-situ thermally evaporated magnesium and a polyethyleneterephthalate (PET) film is studied by X-ray photoelectron spectroscopy (XPS). The initially deposited Mg atoms adsorb on the PET surface, via an addition reaction to the C=O groups, with the simultaneous formation of Mg-O and Mg-C bonds. Further metallization shows condensation in the agglomeration mode, with metallic clusters formed by adsorption on to the initial Mg at the PET interface. With exposure of the Mg/PET film to air, the interface does not change although the outer metallic component oxidizes. Rinsing this air-oxidized Mg/PET film with water removes all the magnesium and leaves a modified PET surface compared with its initial state.

URL<Go to ISI>://A1995QK40500003