What causes extended layering of ionic liquids on the mica surface?

What causes extended layering of ionic liquids on the mica surface?† †Electronic supplementary information (ESI) available: Additional AFM images. See DOI: 10.1039/c5sc00832h Click here for additional data file.

Morphology of BMIM FAP on the heated mica surface Mica was cleaved and heat treated in an conventional oven at 120 C for 1 h. Afterwards, the mica was dip-coated with 0.01 g/L and 0.001 g/L BMIM FAP/Vertrel (2,3-dihydrodecafluoropentane) solution, respectively. The average thickness of the resulting BMIM FAP nanofilms is estimated to be in the order of angstrom or lowerS1. The topography of BM...

The Effect of Water and Confinement on Self-Assembly of Imidazolium Based Ionic Liquids at Mica Interfaces

Tuning chemical structure and molecular layering of ionic liquids (IL) at solid interfaces offers leverage to tailor performance of ILs in applications such as super-capacitors, catalysis or lubrication. Recent experimental interpretations suggest that ILs containing cations with long hydrophobic tails form well-ordered bilayers at interfaces. Here we demonstrate that interfacial bilayer format...

Vapor Adsorption on Mica and Silicon: Entropy Effects, Layering, and Surface Forces

We have measured the adsorption isotherms of n-pentane, cyclohexane, tetrachloromethane, octamethylcyclotetrasiloxane (OMCTS), and water on muscovite mica and silicon. An angle-averaging, refractive-index-matching ellipsometric technique has been used to avoid problems due to anisotropy and back-reflection in the case of mica. With OMCTS on mica layering effects like those found with simple gas...

Interfacial layering of ionic liquids on solid surfaces

A Recyclable Poly(ionic liquid)s Enzyme Reactor for Highly Efficient Protein Digestion

One of the most significant tasks for proteomic research and industrial applications, is the preparation of recyclable enzyme reactor. Herein, a novel recyclable enzyme reactor has been developed based on monodispersed spherical poly(quaternary ammonium ionic liquid)s particles immobilized trypsin. A new quaternary ammonium ionic liquids functional monomer was first synthesized. The ionic l...