More insight is gained from the energetic and entropic components, which are large and in opposition. ∆ el ∆ C E vw⊕el,W ⊕C is more repulsive at the interface than in the bulk, reflecting the fact that the restructuring of the interfacial water around the C 12 E 6 monolayer leads to greater water-desolvation of the DS -head group as a result of surface adsorption to the ACWI compared to adsorption to the AWI. Similarly, -T ∆ el ∆ C S vw⊕el,W ⊕C is attractive as a result of surface adsorption due to the fewer structured water molecules around the DS -head group at the ACWI compared to the AWI, and thus weaker correlation between DS -and the interfacial water.