English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Mesoscale pore one-dimensional (1D) nanostructures, or vertically aligned porous nanostructures (VAPNs), have attracted attention with their excellent hydrophobic properties, ultra-high surface area, and high friction coefficient, compared to conventional vertically aligned nanostructures (VANs). In this study, we investigate the replication of VAPNs produced by the thermal nanoimprint process using anodic aluminum oxide (AAO 2 ) templates (100 nm diameter). Polystyrene/poly(vinyl alcohol) (PS 1 /PVA) blends, prepared by the advanced melt-mixing process with an ultra-high shear rate, are used to investigate the formation of porosity at the nanometer scale. The results reveal that domain size and mass ratios of PVA precursors in the PS matrix play a dominant role in the interfacial interaction behavior between PS 1 -PVA-AAO 2 , on the obtained morphologies of the imprinted nanostructures. With a PVA nanodomain precursor (PS 1 /PVA 90/10 wt%), the integration of PVA nanodroplets on the AAO 2 wall due to the hydrogen bonding that induces the phase separation between PS 1 -PVA results in the formation of VAPNs after removal of the PVA segment. However, in the case of PVA microdomain precursors (PS 1 /PVA 70/30 wt%), the structure transformation behavior of PS 1 is induced by the Rayleigh instability between PVA encapsulated around the PS 1 surfaces, resulting in the PS 1 nanocolumns transforming into nanopeapods composed of nanorods and nanospheres.

Replication of Mesoscale Pore One-dimensional Nanostructures: Surface-induced Phase Separation of Polystyrene/Poly(vinyl alcohol) (PS/PVA) Blends