Entropic effects involved in the formation of an interface: Assessment of acid-base interactions by wetting

The temperature dependence of different thermodynamic quantities-surface and interfacial tensions, gamma (i) (T) and gamma (ij)(T), reversible work of adhesion, W-ij(T), and related enthalpic and entropic components, DeltaH and AS-are studied for both van der Waals and acid-base bonding interfaces. The importance of entropic effects involved in the wetting process is assessed and discussed depending on the nature of interfacial interactions. According to these results, the contribution of entropic effects to the reversible work of adhesion appears to be an effective quantity in describing interfacial phenomena,, especially those involving acid-base interactions.