Abstract
The adhesive properties of isotactic polypropylene with different degrees of crystallinity, surface-modified by corona discharge plasma have been studied, during the process of ageing. Considerable decrease in the surface free energy and its polar component was observed. A significant correlation was found between the mechanical work of adhesion to polyvinyl acetate and the polar fraction during ageing. The influence of the crystallinity of the polymer on the resulting adhesion parameters of aged polypropylene foil was confirmed. © 2001 Society of Chemical Industry
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