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Dr. Claudia Kolbeck, Dr. Alexey Deyko, Dr. Takashi Matsuda, Florian T. U. Kohler, Prof. Dr. Peter Wasserscheid, Dr. Florian Maier and Prof. Dr. Hans-Peter Steinrück Temperature-Dependent Surface-Enrichment Effects of Imidazolium-Based Ionic Liquids ChemPhysChem 14

Version of Record online: 2 OCT 2013 | DOI: 10.1002/cphc.201300719

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Loss of order! The surface enrichment of the alkyl chains of five imidazolium-based ionic liquids (ILs) at the liquid/vacuum interface is studied as a function of temperature by angle-resolved X-ray photoelectron spectroscopy; both the anion and the alkyl chain length at the cation are varied. At room temperature, the alkyl chains are enriched at the outer surface. Upon increasing the temperature, the degree of surface enrichment decreases.

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