Supplementary data for "Nanostructure explains the behavior of slippery covalently-attached liquid surfaces"

Slippery covalently-attached liquid surfaces (SCALS) with low contact angle hysteresis (CAH, <5˚) and nanoscale thickness display impressive anti-adhesive properties, similar to lubricant-infused surfaces.
Their efficacy is generally attributed to the liquid-like mobility of the constituent tethered chains. However, the precise physico-chemical properties that facilitate this mobility are unknown, hindering rational design. This work quantifies the chain length, grafting density, and microviscosity of a range of polydimethylsiloxane (PDMS) SCALS, elucidating the nanostructure responsible for their properties.

Zip files of neutron reflectometry and single-molecule force spectroscopy data are included here.