Micro–nano hierarchically structured nylon 6,6 surfaces with unique wettability

Drying of colloidal droplets on superhydrophobic surfaces

“…Some approaches to superhydrophobicity are very simple; Erbil et al [18] precipitated polypropylene from a good solvent with a non-solvent and cast a fine reticulated structure which gave a water contact angle of 160°. A similar precipitation route was used to make superhydrophobic polyamide [19] and others have produced polymer surfaces that are oleophobic [20]. Hydrophobic inorganic solids include oxidized zinc which produces water contact angles of 170° [21], zinc hydroxide [22], silane-treated, etched silicon [23] and nanoparticle gold [24,25].…”

Biomimetic hierarchical ZnO structure with superhydrophobic and antireflective properties

“…4, the introduction of NRs can act to trap light by inducing multiple scatterings within the structure. The co-existence of micro-and nano-structures can interact with light of different wavelengths, causing reflective suppression over a wide wavelength range [13]. Another advantage of the hierarchical structure over flat surface film is having an antireflection property that is less angle dependent [40].…”

“…The lotus leaf surface is a good example of how, the combination of a micro-/nano-hierarchical structure and low surface energy wax layer, exhibits high water contact angle (CA) and low CA hysteresis. A variety of methods to mimic this phenomenon have been reported, involving the fabrication of hierarchical structures on various substrates [13][14][15][16][17]. However, most of these techniques have used lithography or sacrificial templates, which may be quite costly and can be only applied to a small area [10,16,17].…”

Highly functionalized, aliphatic polyamides via CuAAC and thiol-yne chemistries

“…This is due to the ability of these solvents to break the intermolecular hydrogen bonds [3,55]. IF5, IF7 and IF8 were also soluble in DMA and DMSO.…”