10.1021/acsami.7b01869.s002
Yosuke Tsuge
Yosuke
Tsuge
Takeo Moriya
Takeo
Moriya
Yukari Moriyama
Yukari
Moriyama
Yuki Tokura
Yuki
Tokura
Seimei Shiratori
Seimei
Shiratori
Slippery
Liquid-Immobilized Coating Films Using in Situ Oxidation–Reduction
Reactions of Metal Ions in Polyelectrolyte Films
American Chemical Society
2017
polyelectrolyte film
surface
silver ions
SLIC
Slippery Liquid-Immobilized Coating Films
NH 2 groups
2017-04-10 00:00:00
Media
https://acs.figshare.com/articles/media/Slippery_Liquid-Immobilized_Coating_Films_Using_in_Situ_Oxidation_Reduction_Reactions_of_Metal_Ions_in_Polyelectrolyte_Films/4884719
We fabricated slippery
liquid-immobilized coating (SLIC) films by reacting a slippery liquid
(polymethylhydrosiloxane) near the surface of a polyelectrolyte film
containing silver ions prepared by the layer-by-layer method. The
obtained films maintained their slipperiness after chemical and physical
treatments, in contrast to slippery liquid-infused porous surfaces.
The high chemical and physical stabilities of the films were attributable
to gelation and immobilization of the lubricant owing to an oxidation–reduction
reaction with subsequent dehydration condensation of Si–OH
on the outer surface of the polyelectrolyte film and the bonding of
Si–H with NH<sub>2</sub> groups within the polyelectrolyte
film, respectively. Moreover, the SLIC films exhibited a high degree
of slipperiness with respect to low-surface-tension liquids. To the
best of our knowledge, this technique of lubricant immobilization
using silver ions has not been reported previously. The films should
be suitable for use in various applications where contamination must
be prevented under extreme conditions, such as those requiring high
physical durability and organic solvent use.