Oligo(ethylene glycol) (OEG) SAMs are important tools in medical applications to hinder the irreversible adsorption of proteins on surfaces. They can be used to structure cells on surfaces or in combination with specific headgroups as sensor elements. The aim of this work was the in-situ characterization of hexa(ethylene glycol) self-assembling monolayers (SAMs), their structural changes at elevated temperatures and their longtime stability. The focus was on the interaction of the thiol molecules with the surrounding water molecules and the conformational and structural consequences. A key...